The five-episode case wraps up on Major Crimes Season 4 Episode 23! The detectives feel they are getting close to a solution when Hickman is tied to the gun and look at both him and his wife as suspects, but the real killer is someone else. In the meantime, Dennis confesses to Daniel that he has been running drugs out of the church, shocking his brother -- but he is not the killer.

Sharon realizes that Dennis Price can't be the killer because he wasn't a good shot, and suspects the Hickmans, but if either one of them killed all those people, where does the heroin and the burner phone come in? That gives Sharon an idea and she sends Julio, Mike and Stephanie to a locked garage to check it out.

While this is going on, Gary attempts to pin the armed robbery on Sharon Beck, claiming she was the one who abused Rusty and that he had nothing to do with it. Rusty is offended but Sharon R. says there's a bigger problem: Rusty's mom is being implicated as the mastermind in the robberies. She gives Rusty permission to interview him as he has waived his right to counsel. Rusty confronts Gary and manages to get something very incriminating on tape.

The killer is revealed, breaking somebody's heart, with enough time to spare that Provenza can go to City Hall and marry Patrice. The whole gang congregates there and Hobbs has a surprise for the newlyweds.

To find out who the killer is and what happens at Provenza's wedding, watch Major Crimes Season 4 Episode 23 online.