Dr. Helen Morrison, serial killer expert, weighs in on Darren Deon Vann case

CHICAGO (WLS) -- Dr. Helen Morrison is a forensic psychiatrist and one of the country's foremost experts on serial killers.

The alleged murders of seven women, whose bodies were found in abandoned homes in northwest Indiana, are linked to Darren Deon Vann.

Morrison has interviewed more than 80 serial killers and wrote "My Life among the Serial Killers." She joined ABC7 Eyewitness News to shed some light on the case in Indiana.