Foreign Minister Peter MacKay has expressed the government's condolences to the family of Adam DePrisco, who was killed while vacationing in Mexico.

MacKay promised the family Ottawa would do all it can to ensure Mexican authorities conduct a proper investigation into the boy's death.

He also briefed the family on a conversation with his Mexican counterpart, who promised to ask the state government for a rapid and exhaustive probe.

DePrisco will be buried Thursday morning in Woodbridge, Ont. -- the same day he planned to return from his two-week vacation in Mexico.

The 19-year-old's grieving family is still searching for answers in the violent death that occurred outside an Acapulco nightclub on Jan. 7.

The DePrisco family says the results of preliminary autopsy reports don't add up as the body appeared to have more injuries when it arrived in Canada on the weekend.

Mexican authorities have said DePrisco was the victim of a hit-and-run accident, and an autopsy conducted in Toronto reportedly supports that conclusion.

But DePrisco's family and travel companion say the results don't add up and believe DePrisco died after locals beat him outside a popular Acapulco nightclub.

A local forensic expert told CTV News he was sharply critical of the initial Mexican autopsy report.

"There are a lot of mistakes," said Dr. Alejandro Escobar, a former coroner in Acapulco, adding that the Mexican autopsy didn't provide enough detail to prove anything.

"The big mistake here was that they didn't describe deeply all the injuries on the surface of the body," he said.

Since 1994, 28 Canadians have been killed in Mexico. About half those deaths have occurred in the past five years.

With files from The Canadian Press