PITTSBURGH—Jurors have ended a third day of deliberations in the trial of a fired Pittsburgh state prison guard charged with 80 counts of physically abusing or sexually assaulting inmates—or having other guards and inmate workers do it for him.

Sixty-one-year-old Harry Nicoletti is charged by Allegheny County prosecutors with targeting convicted child molesters and gay inmates at the century-old lockup.

Tuesday was the third day of deliberations for the jury which appeared to be focusing on charges that Nicoletti had others assault the inmates.

They first asked a judge to define "solicitation"—which Nicoletti allegedly did when he had an inmate beat up another—and then had a court reporter testimony by one inmate who claimed Nicoletti molested him and had him beat up others.

Deliberations resume Wednesday.