Private - #1 Suspect

Early on in this novel, Jack is framed for the murder of his ex-girlfriend, Colleen. Two particularly malevolent LAPD homicide detectives want to see Jack convicted, even though Colleen was shot in Jack's bed with Jack's gun. Jack called 911 himself. The gun is easily found close to the crime scene. Jack vehemently proclaims his innocence. Would Jack, a top investigator, make it all so easy for the police? That is the question...