MONTREAL -- Jurors deciding the fate of Luka Rocco Magnotta have begun their fifth day of deliberations.

The eight women and four men started their work on Tuesday and have emerged just once since then.

They asked Superior Court Justice Guy Cournoyer whether a personality disorder is a disease of the mind from a legal standpoint, something Cournoyer confirmed.

On Friday afternoon they sent a note to the judge indicating they weren't able to view certain videos on the court-issued computer in the room where they're doing their work.

Magnotta is charged with first-degree murder and four other offences in the slaying and dismemberment of Chinese engineering student Jun Lin in May 2012.

Magnotta has pleaded not guilty by way of mental disorder and is trying to be found not criminally responsible.

His lawyer says he is schizophrenic and couldn't tell right from wrong at the time of the slaying.

The Crown says Lin's slaying was planned and deliberate.

Lin's father is at the courthouse awaiting the verdict.