An Alberta man who was severely injured during a stay in a Cancun resort had traces of cocaine in his bloodstream, a Mexican hospital says.

The toxicology test results on Jeff Toews were made available to the Canadian Press through Mexican authorities.

Jeff Toews — seen in a family photo with his wife, Natalie, and son, Dawson — has been declared brain-dead.

Testing for marijuana and amphetamines came up negative.

Mexican authorities have maintained that Toews fell from a second-floor balcony after getting drunk in a hotel bar.

Toews's family and friends are disputing the explanation by Mexican authorities, and raised their concerns in a telephone conversation with Foreign Affairs Minister Peter Mackay.

On Thursday, a report from the Mexican Embassy in Ottawa said Toews was drinking into the early morning hours and ignored pleas from friends and security guards to remain in his room.

A security guard discovered Toews early Monday morning after seeing a man running along the second floor of a resort building, then hearing a "loud thud," according to the report released Thursday.

"He saw a guest, who turned out to be Mr. Toews, lying on the floor, bleeding from the head, and immediately radioed the security guards' control room to have them call an ambulance," the report reads.

Coverup alleged

But Toews's family believes Mexican authorities are covering up a crime in an attempt to reassure tourists and keep them coming to Mexico.

"Tourism is a big business in Mexico, you're talking about billions and billions of dollars," said Toews's older brother, Murray.

"For these guys to be able to sweep it under … that's what these guys want. They want mass confusion. They don't want any answers."

Toews, 33, was found unconscious on the grounds of the Moon Palace Golf and Spa Resort in Cancun, where he was vacationing with his wife and nine other couples from northern Alberta.

He was flown back to Edmonton Wednesday and taken by ambulance to the University of Alberta, where doctors confirmed the diagnosis of Mexican doctors, who had declared him brain-dead.

Family members have decided to donate his organs, a decision they discussed with reporters Thursday evening, their voices shaking with emotion.

Toews, they say, was a loving husband and father. He and his wife, Natalie, lived in Grand Prairie with their son, Dawson, 3.

"Somebody's going to get my brother's heart," said Toews's identical twin brother, Greg. "Whoever gets that heart, it's going to be full of love and joy and a whole lot of laughter."

Toews returned to disco several times

The embassy report says that Toews's wife told authorities they were with friends at the resort's disco when a security guard asked her husband to leave at 1:30 a.m. because he had "drunk too much."

They went to their room and she fell asleep, but Toews returned to the disco 20 minutes later, the report says.

His friends urged him to go back to bed and he was taken to his room by a guard, the report says.

He showed up at the disco a third time, at 2:20 a.m., but again left at the urging of his friends, according to the report.

At about 3 a.m., the report says, a security guard spotted a man in his underwear climbing over the balcony of a guest room, onto the grass, and then sprinting towards another building.

That's when a second guard saw a man "running along the second storey" of that building — it's not clear from the report whether he was inside or on a balcony — and later discovered the bleeding Toews. Gabriella Rodriguez, Mexico's tourism secretary, has said Toews fell while climbing between second floor balconies.

Toews's brothers, who were with him in Mexico, allege Toews's injuries suggest he was beaten. They say they found him with serious head injuries, as though he had been hit several times in the head.

"I held my brother as his skull was crushed," Greg said. "I just lost my best friend.

"Something really wrong happened. You guys weren't there to see the look in his eyes. He was scared."

Four recent Canadian deaths in Mexico

Including the Toews case, there have been four recent incidents in which Canadians have been injured or killed in Mexico.

In February 2006, Domenic and Nancy Ianiero of Woodbridge, Ont., were found with their throats slit at a resort near Playa del Carmen. The killings have not been solved.

In January 2007, Adam DePrisco, 19, also of Woodbridge, died outside an Acapulco nightclub. A Mexican doctor blamed the death on a hit-and-run driver, but his family believes he was beaten to death.

Last month, two Canadians were injured when a gunman fired into the lobby of a hotel in Acapulco, Mexico.

With files from the Canadian Press