Published: Nov 02, 2011 2:14 AM EDT

William Bokerman's sister was cleaning out her 90 year old mother's condo in Naples  when she came across a box of photographs belonging to her brother.
Inside she found 48 sexually explicit photos of young boys.. many just toddlers. She also found a pornographic video involving a child.
Investigators say many of the children are depicted in surroundings that appear to be taken in a third world country. They were marked on the back with dates and locations in the Dominican Republic.. locations Bokerman was proven to have visited.
Bokerman is a former music teacher and a registered sex offender. His sister said she didn't report her findings right away because of his past.. he had been convicted of sexually assaulting two young boys in 1993.
Bokerman is in the Lee County jail, set to appear in federal court later this week.
If convicted Bokerman could face between 25 to 50 years in prison and a $250,000 fine.