Former West Seneca Teacher in Custody

June 8, 2011 Updated Jun 9, 2011 at 7:56 AM EDT

By Ed Reilly

June 8, 2011 Updated Jun 9, 2011 at 7:56 AM EDT

West Seneca, N.Y.) The FBI announced the arrest of 25-year old Timothy Bek from West Seneca, NY.

The former substitute teacher at West Seneca West Senior High School was arrested on June 2nd and charged with Felony Possession of Child Pornography.

Federal agents say Bek was pretending to be a woman on Facebook to entice underage males to send him sexually explicit photos.

In some cases, police say that Bek would use the images to 'blackmail' victims into sending more photos.

The arrest was the result of a joint investigation involving the FBI, West Seneca Police, and the WNY Regional Computer Forensic Laboratory, and the FBI Buffalo's Cyber Task Force.

Timothy Bek was ordered held without bail by US District Court Magistrate Judge Jeremiah McCarthy.

Police say several victims have already been identified and they suspect there could be more.

The investigation is looking into whether Bek used school equipment, or his position in the schools, to search for potential victims.

FBI Acting Special Agent in Charge, Richard Kollmar, is encouraging anyone who had suspicious contact with Timothy Bek, either in-person, or on-line with Bek's fictitious "SARAH GRAYSON Facebook account," to contact the FBI.

Kollmar reminds students that they are not being targeted and will be treated as victims.

"We need their cooperation in this matter to make sure that predators out there are brought to justice," says Special Agent Richard Kollmar.

Individuals can reach the FBI at 716-856-7800.