Montreal police say Luka Rocco Magnotta is wanted in a homicide investigation in connection to the delivery of a human foot to the Conservative Party of Canada headquarters in Ottawa, and body parts discovered in both cities.

Police said Magnotta, 29, is wanted on a Canada-wide warrant and police are asking for the public's help to find him.

Sources also told the CBC's Evan Solomon that police believe they are in possession of evidence of the suspect filming the killing and dismembering of the victim.

'Horrible' crime scene
The hand and foot mailed to Ottawa were sent from a fake Montreal address, police said. Police also said there were other body parts sent by mail that they are still investigating.

Other body parts were also found at the same location where the torso was found. Police have not positively identified the victim.

Lafrenière described the scene of the alleged crime as "horrible" but said investigators would be releasing few details for now.

"The most important thing for us is to nab the suspect, and to make sure we don't jeopardize a future trial. I'd have a lot of trouble, as a father, to sleep if that happened."