MONTREAL - Luka Rocco Magnotta's first-degree murder trial heard Friday that a search of his laptop contained no evidence that a video of the slaying of a Chinese engineering student was uploaded from it.

Frank Massa is a Montreal police computer forensics expert testifying about analysis done on two laptops belonging to the accused.

One was found in the trash behind Magnotta's Montreal apartment and the other in Berlin following his arrest.

Magnotta is charged with first-degree murder in the slaying and dismemberment of Chinese engineering student Jun Lin.

Magnotta has admitted to the acts of which he's accused but has pleaded not guilty by way of mental disorder.

Massa says his search of the Berlin computer turned up remnants of an email sent to one of the websites that first published the so-called murder video.