Police officer death or murder?

Police Lt. Joe Gliniewicz a 50 year old man died right after chasing two male suspects which were never found. Detectives say he committed suicide because of the male suspects never being found. Before the chasing of the suspects he was a few weeks of retirement. They found blood that didn't match the police officer, so was this a crime scene or a suicide.

 

                                                                                                                    By: Josue Castillo