Guy Calls 911, Kills Responding Officer Trepierre Hummons, 21, posted suicide-by-cop plan on Facebook By Neal Colgrass, Newser Staff Posted Jun 20, 2015 5:30 PM CDT 61 comments Comments (Shutterstock) (Newser) – A Cincinnati man killed a police officer yesterday while friends were reading about his suicide-by-cop plan in texts and commenting about it on his Facebook page, CNN reports. Trepierre Hummons, 21, called 911 twice about an armed man in the area, and when police responded, he opened fire. He shot and killed 48-year-old officer Sonny Kim, a married father of three and celebrated karate instructor, WLWT reports. An officer responding to the scene shot and killed Hummons. "I love every last one of y'all to whoever has been in my life. ... You're the real mvp," Hummons wrote on Facebook. But no one told police about his messages: "That didn't happen in this case, unfortunately, and we lost one of our best police officers," says Police Chief Jeffery Blackwell.