John Cooley

John Cooley is an incidental character who appeared in Demonology.

History
John met and became friends with Emily Prentiss and Matthew Benton when they were fifteen. He kept in contact with Matthew Benton and after his death, approached Emily and told her that their friend Matthew Benton was dead.

After the BAU began to investigate, he came by her office at Quantico and learned that she was investigating. Later after Father Paul Silvano was released, Paul went after him until Emily and the team find him. Outside the house, he says to Emily "I'm sorry I wasn't there when I should have been", implying that he was the father.