The bodies of Gary Barnes, 36, and Cherie Barnes, 32, were discovered in a bedroom of their rural Butler County home about 11:30 a.m. Friday.
They each died of gunshot wounds.
It is believed they were killed about 2 a.m. Friday, 17 July 1987. At 10:56 a.m.
Friday the Butler County Sheriff's Office received a call from the Wichita Police Department regarding the double murder.
At 11:26 a.m. sheriff's officers arrived at the scene and observed the body of one of the victims through a window.
Officers then forcibly entered the residence and found the bodies of both.