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Police arrested 50-year-old Glen Cosgriff of Rochester. He is now facing several counts of criminal possession of a weapon.

Probation officers made the discovery Tuesday night when visiting his home. He was previously convicted with a felony DWI.

RPD officials say probation was there for a routine visit when officers found the suspicious device, handguns and long guns. The bomb squad responded and then set off the explosive.

In a statement to police, Cosgriff says he is a collector and would never intend on using any of the weapons to hurt anyone.

Neighbors describe Cosgriff as a good person, and they believe that he would never hurt anyone.

"He's a good guy, hard working. You wouldn't think he would have pipe bombs in his house. He's a good guy," said one neighbor.

"He's just a good guy, that's the best way I can describe him, too. Honest, hard working man, just an honest American, hard worker," said another neighbor.

"I don't think he would, I dont think that was ever meant to hurt anybody," the first neighbor said.

School officials say that they too don't believe that any students were in danger. The district was aware of Cosgriff's previous DWI conviction, and say that since the crime was not related to his job function as a custodian, the charge has no bearing on his employment.

"It has to be related to their job function, so being a custodian, a DWI doesn't effect it, if he was a bus driver, obviously, he wouldn't be working for the district so those are determined by how if affects the job function," said Malik Evans, school board president.

Evans says the district will conduct its own internal investigation along with the criminal investigation.