A jury found a man guilty Wednesday of a 1983 rape in Miami-Dade County after DNA tech advances helped detectives to find new evidence.

The defense team for accused serial rapist Robert Koehler, known as the “Pillowcase Rapist,” is expected to call on its final two witnesses Tuesday.

The man who detectives identified as the serial “pillowcase” rapist testified in Miami-Dade County court Monday.

The trial continues Friday for Robert Koehler, known as the “Pillowcase Rapist.”

The Broward Sheriff’s Office announced charges Tuesday against Robert Koehler, known as the “Pillowcase Rapist,” for cold cases from the 1980s.

An arrest warrant later showed detectives believe he was the man who earned the moniker for using a pillowcase to cover the faces of dozens of his victims in South Florida. An FBI database helped detectives to catch their suspect. According to the arrest warrant, the rape kit of a 25-year-old woman who officers believe was his victim in 1983 was included in the FBI’s Combined DNA Index System. The first sample was from Koehler’s son Jan. 13, and detectives collected the second sample after following Koehler to a public area Jan. 16. Detectives sent the evidence to the Miami-Dade Police Department’s crime laboratory, where there was confirmation Jan. 17.