Closing arguments in the trial of the man accused of raping three women in two counties last year are scheduled to begin Monday.
Arthur Henderson, 39, is accused of raping two women in Ross Township and a third woman in Hopewell Township in January 2012.
Jurors heard from three DNA experts Friday.
The experts, from the state police DNA lab and the Allegheny County Medical Examiner’s forensics lab, testified in court to confirm Henderson’s DNA was a perfect match to the DNA taken from all three women.
One of the specialists testified that the probability of another perfect match is one-in-eight quintillion.
Henderson is representing himself in the trial, which began Tuesday.