The Walking Dead #19

Dexter's attempt to control the prison had an abrupt end. When he picked up the weapons in Block A, he forgot to close the door and a horde of zombies attacked the group. In the fight, he lowered his guard and Rick shot him dead. Although it was the wisest thing to do to protect the group, this decision jeopardizes Rick's "No killing" stance. Meanwhile, the group has a new and mysterious visitor.