HALIFAX -- A Dalhousie University medical student who allegedly told his psychiatrist he had thoughts of shooting up to 20 people before killing himself has pleaded not guilty to four charges.

Defence lawyer Stan MacDonald entered the pleas on behalf of Stephen Gregory Tynes, who was not in court Monday in Halifax.

MacDonald also told the court that his client has elected trial before a provincial court judge alone.

The 30-year-old Tynes faces two counts of uttering threats to cause bodily harm and one count of engaging in threatening conduct. He is also charged with unauthorized possession of a prohibited device in relation to an overcapacity cartridge magazine.

Outside court, MacDonald said a tentative trial date had been set for June 6.

"We may try to get something a little earlier, but that depends on availability of judges and court rooms and counsel and witnesses," MacDonald said.

He also said the trial would likely only take one day to complete.

A police search warrant alleges that Tynes also told his psychiatrist he planned to stab the associate dean of undergraduate medical education at Dalhousie as well as her daughter.

The document says police seized 1,834 rounds of ammunition, rifles and gun accessories from a Halifax apartment.

None of the allegations have been proven in court.

Tynes remains free on bail but he must stay at his father's home in Truro, N.S.