Pennsylvania State Police(PHILADELPHIA) -- Matthew Royer, 21, a University of Rhode Island student, has disappeared on his way home from the school for summer vacation.

Authorities have said they believe he made it within 30 miles of his Pennsylvania home before falling off the grid.

Royer was last seen on Thursday, May 16 on the University of Rhode Island campus. The college junior had moved out of his apartment and returned the keys, according to ABC News' Philadelphia station WPVI.  The last known communication was with his mother, Janet Royer, at around 6 p.m. that day to say that he had overslept and was "about to leave."

From there, surveillance footage, debit card use and cell phone tower pings show Royer stopping at a gas station in Rhode Island at 6:30 p.m., and near Allentown, Pa., at 2 a.m. on Friday then stopping at a gas station about 35 miles from his home a short time later, according to his family and authorities.

"He bought water at the station, he opened it in the car and headed southbound on 100. He looked fine, not distraught," his mother told WPVI.

"We've narrowed it down to 30-40 miles from our house, and we can't find him," Janet Royer said. "You couldn't ask for a better son. It's not like him. If he wasn't coming home, he would've told me he wasn't coming home, unless he couldn't."

Royer is white, 6-feet-1, and weighs 160 pounds. He has brown hair and blue eyes.

Authorities are asking anyone with information to call Pennsylvania State Police Skippack at 610-584-1250 and give the reference number K03-1918501.

William Thomas Cain/Getty Images(ZEPHYRHILLS, Fla.) -- Residents of the small town of Zephyrhills, Fla., are buzzing with excitement that the lucky holder of a Powerball ticket worth $590.5 million could be a neighbor, after the announcement that the winning ticket was sold at a grocery store there.

"I think that's awesome.  I can't wait to see who it is.  I hope it's somebody I know.  I think it would be great," resident Martha Bennett said.

The central Florida town, with a population of 13,337, was best known as a skydiving destination before lottery officials revealed on Sunday that a Publix supermarket in Zephyrhills had sold the winning ticket for the record Powerball jackpot.

The winning numbers in Saturday's drawing were 10, 13, 14, 22, 52 and a Powerball of 11.

The lucky person or group holding the ticket has not yet come forward, according to lottery officials.  However, under Florida law, the winner's name, age and hometown will be made public.

Chuck Strutt, executive director of the Multi-State Lottery Association, urged the person holding the ticket to sign it immediately.

"If it were me, I'd put that in an envelope and duct tape it to my chest.  I'd be known as the Powerball millionaire with a nasty rash," he said.

While the residents of Zephyrhills wait to find out if the winner is one of their own, whoever is holding the ticket will have a big decision to make after coming forward.

The winner will have to decide whether to take the annuity or a lump sum, which comes out to $370,896,780.54.

Earlier estimates had put the jackpot at $600 million, however the Powerball website reflected an adjusted total of $590.5 million -- still the largest jackpot in the game's history.

The previous record for a Powerball jackpot was $587.5 million on Nov. 28, 2012, and was split between two winning tickets.

The odds of winning the top jackpot was 1 in 175.2 million.

While there was only one grand prize winner, 31 tickets matched all five numbers, earning those lucky ticket holders a prize of $1 million each.  Two tickets sold in New York and South Carolina were Power Play winners worth $2 million each, according to Powerball officials.

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Ingram Publishing/Thinkstock(NEW YORK) -- New York City police say a deadly shooting that took place in Greenwich Village Saturday was an anti-gay hate crime.

32-year-old Harlem resident Marc Carson and his companion were just blocks from the famous Stonewall Inn when a group approached them, making anti-gay slurs.

Police say that one member of the group, Elliot Morales, asked the two men if they were “gay wrestlers," and later asked “do you want to die here?"

Morales then pulled out a gun and shot Carson in the face, according to NYPD Commissioner Ray Kelly. He died in the hospital soon afterwards.

An officer arrested Morales a few blocks away from where the shooting took place.

This is the latest in a series of bias attacks on gay men in the area, and police are investigating to see if there is any connection between this incident and earlier ones.

“It's a really sad affair,” said Sean Williams, a friend of Carson.

“I mean, come on. This is 2013. Who's killing people for being gay nowadays?”

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iStockphoto(DENVER) -- Colorado’s recently approved gun control laws, passed in response to the Aurora, Colo., and Newtown, Conn., massacres, are being challenged by a delegation of sheriffs who say the laws are unconstitutional.

In March, Colorado Gov. John Hickenlooper signed off on some of the toughest gun control legislation in the country, including a law mandating universal background checks for the purchase of firearms and another restricting the size of high-capacity magazines.

A lawsuit was filed on Friday in Colorado’s U.S. District Court on behalf of 54 of the state’s sheriffs in an effort to block the laws from taking effect.

“This lawsuit is for your rights and for your safety,” Weld County Sheriff John Cooke said at a news conference on Friday.

“These bills do absolutely nothing to make Colorado a safer place to live, to work, to play or to raise a family. Instead these misguided, unconstitutional bills will have the opposite effect because they greatly restrict the right of decent, law-abiding citizens to defend themselves, their families and their homes,” he said.

All but 10 of the state’s 64 sheriffs, who are elected officials, signed their names to the lawsuit.

Tom Sullivan, who lost his son Alex Sullivan in the Aurora movie theater massacre, told ABC News’ Denver affiliate he didn’t understand the backlash to the laws.

“I do not understand why these politicians are picking guns over people,” he said, “and why they want to make it easier for criminals to get guns and for other families to go through what we did.”

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Photo by William Thomas Cain/Getty Images(NEW YORK) -- As the countdown ticks on to Saturday night's record Powerball drawing, the jackpot has swollen to over $600 million, largely due to California's participation in the game, lottery officials said.

In the one month since California joined the list of 42 states, the District of Columbia and the U.S. Virgin Islands in playing, Powerball fever has swept across the Golden State.

California, the country's most populous state, has skyrocketed to the top three states in terms of ticket sales, alongside Florida and New York, according to lottery officials.

"Once California joined the Powerball family, we helped change the dynamics to this game because of the mere size of the state and the number of players that we have," a California lottery spokesperson told ABC News.

The size of the jackpot has created a frenzy that has also driven ticket sales, according to lottery officials. The previous record for a Powerball jackpot was $587.5 million on Nov. 28, 2012.

Tickets sold at a rate of 600,000 per hour in New York on Friday, New York lottery spokeswoman Carolyn Hapeman told ABC News.

It's expected that tickets will continue to sell at a rapid rate until the 10 p.m. ET cut-off time Saturday night. The winning numbers will be drawn at 10:50 p.m. ET, perhaps minting a few new millionaires.

However, if no one matches all five numbers plus the Powerball, the jackpot will continue to balloon.

Kelly Cripe, media director for the Texas Lottery, which is one of the states in the Powerball lottery, said the next drawing would be May 22 and estimated the pot would be at least an astonishing $925 million. The frenzy of such a massive jackpot would likely push it even closer to $1 billion.

The odds of winning the grand prize are one in 175,223,510, according to the Powerball website.

While Saturday's jackpot is a Powerball record, it's not the biggest lottery jackpot in U.S. history. That honor belongs to the Mega Millions, which paid out a record $656 million on March 30, 2012.

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Comstock/Thinkstock(FAIRFIELD, Conn.) -- Federal transportation officials began their investigation Saturday to determine what caused two commuter trains to crash head-on in Connecticut during the Friday rush hour.

At least 70 people were injured Friday when a Metro-North train derailed and barreled straight into the path of another train headed in its direction just outside Bridgeport, Conn.

Investigators from the National Transportation Safety Board arrived at the scene Saturday morning to begin surveying the twisted rail cars that remained on the tracks.

"We'll be looking at how the crew behaved and how the crew operated the train," NTSB member Earl Weener said.

During the investigation, which is expected to last seven to 10 days, officials will also examine the braking performance of the trains and the conditions of the wheels, cars and track to see if they played a role in the crash, Weener said.

Gov. Dannel Malloy said three people remained in critical condition on Saturday, while six others also remained hospitalized for their injuries. Many of the injured suffered bruises, cuts and minor fractures and were able to be treated and released, according to officials at two area hospitals.

A Metro-North train was traveling east from New York City's Grand Central Station to New Haven, Conn., when it derailed at 6:10 p.m., Weener said.

The jolt of the impact was so strong, passengers said it caused bodies to be flung around the cars.

Sen. Richard Blumenthal, D-Conn., was among the elected officials who surveyed the damage and called the scene "absolutely staggering."

He said the injuries could have been much worse and lauded the investment in infrastructure for saving lives.

"Investment in quality of transportation is probably one of the lessons we will learn from this accident," he said.

While the wreckage remains on the tracks, transportation in the Northeast Corridor is expected to be crippled.

Two of the tracks on the line were already out of service for a project, and the remaining two tracks were damaged in the collision, according to the Metropolitan Transportation Authority, which operates the Metro-North Railroad.

Amtrak's service between New York City and Boston, which operates on the tracks where the accident occurred, was also suspended indefinitely.

Commuting could be a challenge on Monday for those around Bridgeport who rely on Metro-North to get to and from work in New York City.

Malloy said a system was being set up to move people from Bridgeport to nearby train stations.

"This is going to be with us for a number of days," he said.

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Comstock/Thinkstock(FAIRFIELD, Conn.) -- Approximately 60 people were taken to hospitals this evening – five with critical injuries – when a New York-area commuter train derailed near Fairfield, Conn., knocking a second train coming the other way off the tracks, officials said.

Amtrak train service between New York and Boston was suspended indefinitely, as was service on the Metro-North Railroad’s New Haven commuter line in Connecticut, amid an investigation, and damage to the Metro-North trains and tracks.

Connecticut Gov. Dannel Malloy estimated normal service would not resume until at least Monday.

“These tracks have been torn up,” he told reporters. “There’s been extensive damage.”

The National Transportation Safety Board was sending a team to investigate the crash, and was to be the lead agency in the investigation.

Local police initially put the number of injured between 20 and 25, but several hours later Malloy said 60 people had been taken to hospitals. Five of those 60 had critical injuries, he said, including one person who was considered “very critical.”

The accident occurred just east of the Fairfield metro station at approximately 6:10 p.m., when trains heading in opposite directions between New Haven, Conn., and New York’s Grand Central Terminal collided, officials said. The collision occurred after the New York-bound train derailed, knocking cars from the second train off the tracks.

Rob Oliver, a passenger on board the train that was struck, said he heard “a tremendous amount of metal and just an extremely loud sound.”

“We suddenly were screeching to a stop, but you knew it wasn’t a screech-normal stop … because there was just an awful burning smell and the cabin was filling with smoke,” he said.

He saw people being removed on stretchers with apparent neck or back injuries.

“I know some people breathed in some smoke, including myself, and I’m sure there’s people who have those sorts of [smoke] injuries,” he said. “Other people got injured coming off the train, because it’s a big jump down to the tracks and people were scrambling to get off the tracks as quickly as possible.”

Multiple reports of injuries initially prompted officials to scramble ambulances from all over the region to the site, police said.

The train cars involved were M8s, which were fairly new to the New Haven line.  This was the first serious accident involving the new cars, considered state-of-the-art.

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Brigham and Women's Hospital(PITTSBURGH) -- The husband of a Pennsylvania doctor who died with "toxic levels of cyanide" in her system is being investigated as a person of interest, his attorney told ABC News Friday.

Autumn Klein, 41, collapsed at her home in Pittsburgh's Oakland neighborhood and later died on April 20 at UPMC Presbyterian Hospital, where she was chief of the division of women's neurology and an assistant professor of neurology, obstetrics and gynecology.

Her husband, Dr. Robert Ferrante, 64, is a professor of neurological surgery at University of Pittsburgh. The couple has a 6-year-old daughter named Cianna.

"There's no question he's a person of interest and that's really all I can go into now," William Difenderfer, Ferrante's attorney, told ABCNews.

"He's under investigation, as any case like this would be, and that's about all we know from the standpoint of the government and he has retained me and we have some experts on board too," Difenderfer said. "We're looking into things as well."

He "adamantly" denied that Ferrante was responsible for or in any way was involved in his wife's death.

"We're going to anxiously defend the case at this point," he said. "I don't want to even get in on a debate with this case now until we see what the commonwealth does."

Difenderfer said he was not aware of police talking to his client recently.

When asked about reports that Ferrante may have purchased cyanide with a university credit card, Difenderfer said, "I can't confirm or deny that. I don't know."

A source briefed on the case told ABC News that investigators believe Ferrante ordered cyanide prior to his wife's death. Detectives have not questioned the doctor about that, but are aware that his attorney has told others that the chemical was used in Ferrante's research.

Ferrante is currently the only person under suspicion in connection with the death of his wife.

"No one else is being looked at," the source said, insisting that that could still change if new leads are developed.

Pittsburgh police again declined comment when contacted by ABC News on Friday.

Authorities have said that Klein's death is being investigated as a possible homicide and a possible suicide.

The FBI is working to assist the Pittsburgh police in the investigation. Earlier this month, police executed a search warrant to search the couple's home.

Investigators removed three vacuum cleaners, a computer tower, and towed the couple's cars.

Warrants were executed for "PITT and/or UPMC," where Ferrante and Klein worked, respectively, according to authorities.

Veteran forensic pathologist Cyril Wecht told ABC News recently that he has been retained to consult in the investigation of Klein's death, but did not say who hired him.

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