HALIFAX -- A psychiatrist said she went to police with concerns about a Dalhousie University medical student she was treating because she felt the daughter of a university official was in imminent danger of being harmed.

Dr. Terry Chisholm testified Monday at a peace bond hearing for Stephen Gregory Tynes, which occurred after the Crown dropped three of the four charges against him. They included two counts of uttering threats to cause bodily harm and one count of engaging in threatening conduct.

Chisholm said she had been seeing Tynes periodically for about a year when she became concerned about his state of agitation following a session on Aug. 20, 2015, which included theoretical musings about a mass shooting.

"He was feeling that he was being treated unfairly and that he was being forced out of the medical school," said Chisholm.

She said Tynes talked in a "cold and dispassionate" way of doing harm to the daughter of Dr. Evelyn Sutton, who was the associate dean of undergraduate medical education at Dalhousie. Sutton, whose daughter was also in the medical program, had been working with Tynes in relation to his academic performance in the program.

Chisholm said Tynes had expressed anger at Sutton before the conversation switched to her daughter, Ellen MacDonald.

"He said that he would stab her," said Chisholm.

When she asked why, Chisholm said Tynes told her that MacDonald would never be treated the same way he was in being brought before a progress committee at the medical school.

Chisholm said she then asked him if he was also thinking of harming himself but he said no, although he later talked about what it would take for him to commit suicide.

"He started to talk about ... if I took a gun and killed 10 or 15 people at the medical school, if I did that then I would shoot myself."

Chisholm said Tynes told her that he didn't have a gun but he knew where he could gain access to one.

She said Tynes left her office, slamming the door after crumpling up and throwing an appointment slip.

Chisholm said she soon after called 911 to inform police and then called Dr. Sutton to warn her of the potential danger to her daughter.

"I was quite concerned for her (MacDonald) and so I felt it was my duty to inform her (Sutton) and to inform police," Chisholm said.

Tynes is also charged with unauthorized possession of a prohibited device in relation to an overcapacity cartridge magazine.

Tynes has been charged with sexual assault in a separate incident.