Federal authorities are searching for victims of a suspected serial child predator who once lived in Charleston.

The victims, some as young as 8 years old, may be unaware they were assaulted because their alleged attacker would drug them, according to the Federal Bureau of Investigation.

Matthew John Coniglio, 46, committed suicide April 20 in a Savannah jail. He had been arrested April 10 in Pooler, Ga., and charged with possession of child pornography. Investigators said he had more than 50,000 images and videos depicting child pornography.

Coniglio was working as a sales representative for a food distribution company headquartered in Florida at the time of his arrest.

Authorities believe Coniglio drugged several young females before molesting and raping them.

The FBI said they believe Coniglio had multiple victims but provided no estimate on how many. It also remains unclear when Coniglio lived in Charleston and for how long. He also lived in Hilton Head, Georgia and Florida, according to authorities.

Authorities don't believe Coniglio shared or traded any of the videotaped assaults, officials said.

The victims in the photographs and videos are being identified and notified, Investigators are also asking potential victims to come forward so that they may aid investigators and potentially be helped by the agency's victim assistance program.

"While Coniglio took many answers with him upon his death, the FBI is now focused on efforts to provide victim assistance and support to those numerous individuals whom Coniglio harmed," FBI Special Agent in Charge J. Britt Johnson said.

Authorities are asking anyone with information about Coniglio or anyone who believes they may have been assaulted by him to contact the FBI's victim assistance toll free number at 1-877-236-8947, fill out a confidential questionnaire available on the FBI website or email FBIvictimassistance@ic.fbi.gov.

Reach Natalie Caula Hauff at 937-5594 or Twitter.com/ncaula.