Inside the mind of the Canadian Porn Star Killer

Vancouver police are investigating whether two new packages containing human body parts are connected to the dismemberment killing of a Montreal college student.

Authorities say the packages were received at two separate schools. Luke Magnotta, the Canadian porn star suspected of murdering that Montreal college student with an ice pick and dismembering his body could be extradited to Canada within the week. He was captured Monday in a cafe in Berlin.

Magnotta is suspected of mailing body parts to prominent Canadian officials. He is also accused of videotaping the grisly murder and posting it on the Internet.  What goes on in the mind of someone who could even think of doing such things?

Dr. Michael Welner is a forensic psychiatrist who developed the "depravity scale" and comes OutFront.