'(<a href="http://www.j-archive.com/media/2010-11-29_J_22.jpg" target="_blank">Kyra Sedgwick delivers the clue.</a>)  If 2 or more murders have a similar type of victim & weapon, you might be dealing with one of these, a term popularized by Robert Ressler of the FBI'
a serial killer
A MURDER INVESTIGATION: If 2 or more murders have a similar type of victim & weapon, you might be dealing with one of these, a term popularized by Robert Ressler of the FBI
If 2 or more murders have a similar type of victim & weapon, you might be dealing with one of these, a term popularized by Robert Ressler of the FBI
If 2 or more murders have a similar type of victim & weapon, you might be dealing with one of these, a term popularized by Robert Ressler of the FBI
A MURDER INVESTIGATION
a serial killer
A MURDER INVESTIGATION