A psychiatrist hired by the Crown says it is possible Luka Rocco Magnotta was sane and aware of his actions the night he killed Jun Lin.

Dr. Gilles Chamberland consulted expert reports prepared for the defence that said Magnotta was psychotic and wasn't able to tell right from wrong when he killed and dismembered Lin in May 2012.

Chamberland testified again today at Magnotta's first-degree murder trial and said there was enough in the reports to show the accused knew what he was doing.

The accused has admitted to killing the Chinese engineering student, but has pleaded not guilty by way of mental disorder.

Magnotta gave contradictory versions of the events surrounding Lin's death to two defence psychiatrists.

Chamberland has previously said Magnotta refused to meet him for the prosecution report, which meant he couldn't say his own findings were definitive.