This undated photo provided by the Des Moines Police Department shows Scott Michael Greene, of Urbandale, Iowa. Des Moines and Urbandale Police said in a statement Wednesday, Nov. 2, 2016, that they have identified Greene as a suspect in the killings early Wednesday morning of two Des Moines area police officers. The two officers were shot to death in separate ambush-style attacks while they were sitting in their patrol cars. (Des Moines Police Department via AP)