CALGARY -- Police charged a man with first-degree murder on Friday in the stabbing death of the owner of a Chinese wellness centre in Calgary.

Jin Huang, 42, is scheduled to appear in court on Monday.

The man who died ran the Perpetual Wellness Chinese Medicine Centre and has been identified by police as 51-year-old Tiejun Huang.

Even though the two men share the same last name, police say it's not believed that they're related.

The accused allegedly brought a knife with him to the clinic on Thursday, Insp. Don Coleman of the Calgary police department's major crimes unit told a news conference.

"It would appear that the accused wanted to confront the doctor in relation to his perception of some sort of relationship between the doctor and the accused's wife," he said.

"I believe he was quite agitated, attended the clinic, searched out the doctor and engaged in a verbal altercation, which ultimately led to the physical altercation and the stabbing of the victim."

None of the allegations made by police has been proven in court.

Police know of one report of a "domestic incident" in the past between the accused and his wife, Coleman added. He said he believes the couple lived together and have children.

She's been a patient at the clinic for a "substantial period of time," he said.

On Thursday afternoon, police were called to a shopping centre north of downtown Calgary amid reports of multiple stabbings. The accused was treated for minor injuries on scene before he was arrested.

A woman who was a patient at the clinic -- not the accused's wife -- sustained minor injuries and has been released from hospital, police said.

There were large drops of blood leading up to the door of the second-floor clinic on Thursday. Yellow police tape blocked off the section of mall while bystanders looked on.

Maggie Law, who runs a spa a few doors down, said she saw people from a nearby restaurant running over to help yelling "bring more towels, bring more towels! There's a lot of blood."

Coleman praised those who came to the clinic owner's aid.

"It's always heroic in nature when people can spring into action like that," he said. "I can guarantee nobody expected to be in that position that day. It's impressive to know that there's people who are willing to help in those situations, especially when the offender is still at the location."