By Steve Patterson and David Spunt
PHILADELPHIA (CBS) – Tuesday is Day 6 in the search for missing West Chester University student Shane Montgomery.
Eyewitness News is now learning why the FBI has gotten involved in the investigation.
For everyone else, it's Day 6 in the search for missing college student Shane Montgomery.
For Kevin and Karen, it's close to 140 agonizing hours, without the boy they raised for 21 years.
"Shane is my son. I'm his father. And as a father, it's my duty to protect him, to keep him safe. But I can't do it because we can't find him," Shane's father Kevin Montgomery said.
Shane went missing Thanksgiving morning.
Home for the holidays, bar hopping with friends, ending at Kildare's, escorted out at closing time without incident.
Shane exited the bar, walked south toward home, and vanished.
"People just don't vanish," Shane's mother Karen Montgomery said.
Eyewitness News also spoke to one of the last people to see Montgomery before he disappeared. Tim Wittman, 21, is Montgomery's first cousin and was with him in Manayunk.
"I'm helping out as much as I can. If the FBI needs me, I'll go down there. If the Philly Police need me, I'll go there. I'm just assisting in any which way that I can," Wittman said.
"I would do anything to get him back," Wittman told Eyewitness News.
"If you know something, say something," Wittman said.
"Our goal is to get to the bottom of this. To find Shane, to find out what happened,"said FBI Special Agent J.J. Klaver.
Tuesday, CBS 3 sat down with FBI Special Agent J.J. Klaver.
He's says the department brought in to assist by adding resources, saying the bureau is conducting interviews by pooling phone and bank records and trying to track down relevant surveillance video.
(Reporter:) "Is Shane in any of the surveillance video that you've gathered at this point?"
"Not to our knowledge. We've reviewed a lot of video. Obviously it's nighttime some of the video is not that great or from a distance so it's not readily apparent," said Klaver.
(Reporter:) "Is there any element in this that would lead you to believe that there is anything criminal happening or that happened that night?"
"We don't have any definitive indication or evidence that there is, but we also don't have anything that says there isn't," said Klaver.
"Automatically moves it into the category of a mysterious disappearance, mysterious circumstances, and that's how we're treating it."
There is a candlelight vigil scheduled for Wednesday at 6 p.m. at West Chester University.
Shane is described as a 5'11 white male, weighing around 135 pounds with a Celtic cross tattooed on his back. He was last seen wearing a grey shirt.
Anyone with information is asked to call police at 215-686-3353.
Family and friends created www.helpfindshanemontgomery.com to help with the search.
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