| "This isn't enough evidence."|
This article is Trace Evidence. You can help the Crime Lab by investigating it further.
|Minor Character: Miami|
|Family||Calleigh Duquesne (Ex-Girlfriend)|
|Portrayed By||Holt McCallany|
|First Appearance||Simple Man|
John Hagen was a homicide detective who worked with the Miami-Dade Police Department.
Hagen had emotional and psychological problems.
He had a brief relationship with Calleigh Duquesne in 2003, but she later broke it off after a case.
In 2005 he pulled a crucial piece of evidence from a crime scene because he wanted to be a hero like his ex-partner Raymond was. He panicked when Calleigh came over to photograph the scene, so he crept up behind her and put his gun behind her head. Although he didn't mean to hurt her, it allowed him time to escape (she didn't know it was him at that time).
He later shot himself in the Ballistics Lab. Calleigh heard the sound of the gun from the crime scene, turned around and then Hagen was dead.
This incident prompted her to transfer out of Ballistics. (10-7)