The Ontario Health Ministry has completed an investigation into the death of a Toronto man that some have linked to the city's public service strike, but key parties say they weren't contacted by investigators.

Paramedics arrived to treat Toronto businessman James Hearst 35 minutes after the first 911 calls were made. (CBC)

Toronto Emergency Medical Services has confirmed it has received the report looking into the response of paramedics to a number of 911 calls that were made on June 25 after James Hearst, 59, was stricken with a heart attack.

It took 35 minutes for EMS workers to arrive and treat Hearst, who collapsed in the lobby of his apartment building at 40 Alexander St., near Church Street and Wellesley Street. By that time, he was dead.

Hearst's partner of eight years, Alejandro Martinez, suggested the slow response might have been due to the civic workers strike, which had gone on for three days at that point.

EMS workers were operating at 75 per cent capacity because of the strike.

City officials have denied the strike had anything to do with the situation.

Toronto EMS chief Bruce Farr has said that an ambulance arrived at the scene within nine minutes but didn't enter the building due to "health and safety concerns."

Death 'like a nightmare'

"I think that the citizens can have full confidence that it will be a thorough review," said Health Minister David Caplan on Thursday.

Manuel Rodriguez, who made some of the emergency calls and cradled Hearst in his arms before he died, told CBC News he hasn't "received any calls or any questions regarding the incident." He said he isn't aware of any other witnesses at the scene being interviewed.

"Basically, I can't get rid of the whole incident. It has been kind of like a nightmare," Rodriguez told CBC News.

Martinez also said he hasn't been contacted.

"As far as the city is concerned, I probably don't even exist, because they haven't contacted me at all," he said, "Not to ... express their condolences, not to say that they are doing an investigation."

When asked if the public can have confidence in a report when witnesses at the scene were not contacted, Caplan said he didn't know the details of the report.

"I'll have to wait to see the report, and we'll put it in the hands of the city and the people of Toronto," Caplan told CBC News.

Only Toronto EMS can decide whether the report will be released publicly, however. Farr and other EMS management officials have not said if they'll publicize it, but say they'll comment on the case on Oct. 5.