A Wichita man has been found guilty of first-degree murder in the 2014 slaying of a radio station employee.

Twenty-five-year-old Daniel Flores was found dead in the basement of Steckline Communications on Feb. 10 after being beaten on the head and face with a fire extinguisher.

Prosecutors say Antwon Banks killed Flores in a fit of rage after the victim found Banks scrawling hate-filled messages in a hallway about his former girlfriend, also a Steckline employee.

Defense attorney Lacy Gilmour argued during trial that Banks was at the building to search for personal papers left behind when he moved out of his former girlfriend’s home. She also noted that there was no DNA evidence linking Banks to the crime.

Sentencing is scheduled for May 22.