Sadly, we previously mentioned that Jovan Belcher, a linebacker for the Kansas City Chiefs, killed himself after killing his girlfriend, Kasandra Perkins.
We reported that the 25-year-old man shot his girlfriend several times early Saturday morning, but we didn't know why.
After the shooting, he drove to the team's practice facility where managers tried to talk him down.
He killed himself as the police arrived.
We've found out that he apparently got into an argument with his girlfriend when she returned home late from a Trey Songz concert