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Cars stand near the remand prison Moabit where Canadian Luka Magnotta is being held in Berlin, Germany, Wednesday, June 6, 2012. Luka Magnotta, 29, a Canadian porn actor suspected of murdering and dismembering a Chinese was arrested on Monday at an Internet cafe. (AP Photo/Markus Schreiber)

Cars stand near the remand prison Moabit where Canadian Luka Magnotta is being held in Berlin, Germany, Wednesday, June 6, 2012. Luka Magnotta, 29, a Canadian porn actor suspected of murdering and dismembering a Chinese was arrested on Monday at an Internet cafe. (AP Photo/Markus Schreiber)

'Canadian Psycho' Luka Rocco Magnotta

The human head discovered in a Montreal park during the weekend belongs to a Chinese student allegedly dismembered by a porn actor in one of Canada's most gruesome slayings in recent memory, police said on July 4.