Lucas Turner

Lucas Turner is a prolific serial killer autistic who appeared in Criminal Minds, he is the main antagonist in To Hell and Back, Part 1, and the secondary antagonist in To Hell and Back, Part 2. He is portrayed by Paul Rae.

Biography
Lucas was a mentally handicapped autistic son of a pig farmer in rural Ontario. And as a child Lucas's father took him and Mason to hunt together, and so the three built a strong underground in the woods, where Lucas spent most of his time away from the farm. And im adulthood Lucas spent most of his time away from the farm. And in adulthood Lucas was furious when Mason wanted to sell the family farm after he grantuated from medical school in 2002. With that, Lucas angrily pushed Mason into the barn loft, causing him to and Mason ordered him to steal pharmacy-specific medical supplies and laboratories and medical supplies, the supplies were used to keep Mason alive, and to serve as a healing and regenaration experiment. Spine of your paralisis.

Part 1
Lucas first appears catching a homeless man on the streets of Detroit. He goes from drug dealer to kidnap other people that society doesn't care about. Lucas later kidnaps a young man he takes to the Canadian farm and kills him, and then gives his remains to the pig to eat. Afterwards Lucas kidnaps a prostitute named Kelly Shoane, he throws her into a coffin and takes her across the river to Canada. BAU was then investigating grace to William Hightower than his missing sister. The BAU then deduces that Lucas may be using an underground railway to take his victims, and after identifying the suspect's car that belonged to Mason, the team then goes to Mason's house where Kelly was lying in bed and when Lucas sees BAU coming, he runs away carrying Kelly along.

Part 2
While Lucas is running through the woods taking Kelly with him, Lucas stops in an underground cellar and releases Kelly, she tries to escape further stumbles and falls. Making Lucas hear her and get her back, and when Kelly wakes up in a basement built by Lucas, Mason and his father. Lucas appears cutting himself in pain, Kelly says he has to go to a hospital, but Lucas doesn't let him wait for Mason's call. And she explains that as they are underground the connection would not work. Lucas then gets angry and attacks Kelly, but she screams, and Lucas stops, she convinces him not to tie her, because they are friends. She tries to escape but the gate is locked. Reid manages to locate him through the basement, Hotch opens the basement door and runs to get between Kelly and Lucas. Then at some point Lucas admits that he pushed his brother out of the apartment and cries. Hotch then takes Kelly away, while the armed agents and surrounding Lucas in a hostile, while Lucas tries to attack them, but he is shot by the agents and dies, and Morgan to stop. While William Hightower graps a shotgun and kills Mason Turner being arrested.

Trivia

 * Lucas Turner is very similar to Manhunt's Pigsy, as both are mentally ill, both are manipulated by the main villain, Lucas for Mason, and Pigsy for Lionel Starkweather. And both mentors are Complete Monster/Pure Evil.