The parents of a missing Pennsylvania college student have raised the reward for information leading to his whereabouts from $10,000 to $25,000. 

Shane Montgomery, a 21-year-old West Chester University student, disappeared after a night out in the Manayunk section of Philadelphia early Thanksgiving morning.

Montgomery was last seen after 1 a.m. at a busy Philadelphia bar, where he was asked to leave for bumping into the DJ’s table. Sources told NBC Philadelphia that there was a fight outside the pub. Montgomery’s cellphone pinged a cell tower 30 minutes after he left the bar.

"They walked him out the door and that supposedly was the last time anybody saw him. I can't imagine that's the last time anybody saw him on Main Street," his mother told Fox 29. "Shane would never, ever just walk away. He would never do that,"

The FBI has joined the search for the college student along with the Philadelphia Police Department's Marine Unit, which arrived early for another day of searching along the canal.

Hundreds of volunteers helped in the search this weekend, conducted by water, land and air.

“When we got down here there were 300 some people down here to search. So what keeps you going? That’s what keeps you going,” his father told the NBC Philadelphia.

The Saturday search ended with a church service and a candlelight vigil.

"I want to find Shane and I want to bring him home," his mother said.

Shane, who is from the Roxborough section of Philadelphia, is 5 feet, 11 inches tall, 145 pounds, with light brown hair and has a Celtic cross tattoo on his shoulder.

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