
Shortly after killing her, Mitchell is ambushed and subdued by Dexter. Rita ends up becoming Mitchell’s final victim. When Dexter meets him, he is impressed by how well the older man has been able to balance his two lives.
DOES RITA DIE IN DEXTER BOOKS SERIAL
For decades, Mitchell has led a double life of a serial killer and family man. At each of his crime scenes, Mitchell leaves some of his sister’s ashes, with the victim’s arm pointing toward it. The boy is supposedly meant to represent the Trinity Killer himself. It is later revealed that he killed a young boy before killing these three people by burying him alive at a Four Walls’ building site. A father of two is his apparent third victim, whom he kills with a hammer in the same way his father was murdered. This is the way his mother killed herself. He then makes a mother of two falls to her death.

In the series, he kills a young woman by cutting open her femoral artery with a straight razor, just like how his sister died. But, in reality, he is a serial killer who murders three victims in a cycle, re-enacting what happened to his family. To an outside observer, Arthur will appear as an ordinary man with a family. Rita Morgan was killed by Arthur Mitchell or the Trinity Killer (John Lithgow). If you are wondering about who killed Rita, we got you covered. However, by the end of season 4, things come crashing down when Dexter finds Harrison sitting in his mother’s blood and crying. He and Rita now have a new baby boy named Harrison, and the three of them, along with Astor and Cody, are residents of a suburban neighborhood.

At the start of season 4, Dexter is as happy as he could ever be. They exchange wedding vows in the final episode of the season. In the season 3 premiere, Dexter and Rita discover that the latter is pregnant.
