The trial for the man accused of killing a young Cedar Rapids woman more than 40 years ago is officially underway in Scott County. After taking two full days to pick a jury, Wednesday was the first opportunity for opening statements and testimony from witnesses. 66-year old Jerry Burns of Manchester, is accused of first-degree murder. Prosecutors say Burns stabbed 18-year-old Michelle Martinko in Cedar Rapids in December of 1979. Burns was arrested 39 years later after investigators say they matched his DNA to the crime scene. All of the witnesses that spoke Wednesday were either friends or classmates of Martinko, speaking to what they remembered about her and the night she was killed. It also marked the first time the legal teams had a chance to make their case to jurors.