Joggers Strangler

He ran to kill them. He catches the slim girl first. Her well-fed friend ran away with panic. He wanted to run and catch her too not to let her go away and call the police but he couldn't break his strangulation act. When he was strangling a poor girl his obsessive compulsive disorder receded, giving way to a loss of control and a thirst for pleasure and self-affirmation. He killed his victim near the tree enjoying her gasping and agony. After he took her fresh corpse to the barn.