Terrell Yarbrough was found guilty of first-degree murder in the murders of two Franciscan University students in 1999.
Yarbrough, 25, was convicted in the shooting deaths of Brian Muha, 18, and Aaron Land, 20.
The defense argued that Yarbrough was not the mastermind of the robbery and shooting, pointing the finger at a co-defendant.
Yabrough's family left the courthouse in tears without speaking to reporters, but the families of the victims spoke.
"Being without Brian is lifelong and we miss him so much but having to dredge up all the horror that Brian went through, the cruel treatment by other human beings, having to remember it all, hear all of it, think about all of it – that's over again and now we can dwell on Brian and that's a good thing," Rachel Muha, the victim's mother, said.