A man accused of killing three women in the Portland area and dumping their bodies has been indicted on a fourth murder charge.

Authorities this week charged Jesse Calhoun with a fourth murder, and at least one other victim could be added to the tally. Author and forensic psychologist Katherine Ramsland tells "Banfield" that Calhoun’s alleged pace of murdering women suggests he may have felt invincible and developed “a sort of addiction to it.