The Indiana coroner working to identify victims from Fox Hollow Farm says “several tragedies” still remain.

In late April, the Hamilton County Coroner, Jeff Jellison, announced that his office had identified the remains of Daniel Thomas Halloran at Fox Hollow Farm in Westfield, Indiana. He marks the 10th victim of suspected serial killer Herb Baumeister, though investigators have connected Baumeister to at least 25 victims.

A spokesperson for the coroner’s office previously told Fox News Digital it still has three DNA profiles that haven’t been identified.

Jellison mentioned his office is sorting through 10,000 bone fragments and is uncertain about how many victims might be identified, but told Fox News Digital in an interview that there are “several tragedies.”

A recent ABC News documentary, “The Fox Hollow Murders: Playground of a Serial Killer,” revealed that investigators believe Baumeister recorded his victims using a hidden camera inside his basement’s air vent.

Reporters interview a police officer outside the entrance of Fox Hollow Farm in Westfield, Ind., July 2, 1996. (Rich Miller/Indy Star/USA Today Network/Imagn)

Authorities dig for human bones in a wooded area of Fox Hollow Farm in Westfield July 2, 1996. (Rich Miller/Indy Star/USA Today Network/Imagn)

“Something to relive … the murders,” said retired Hamilton County Sheriff’s Office Det. Cary Milligan. “We’re looking through the bottom of the entertainment area … and we noticed this vent. … I was suspicious that if Herb was videotaping any activity that might have been going on. … That may have been a way that Herb could’ve gained power over the individuals that he was killing.”