Mental Health / Suicide

Another claim made by drug advocates is “Nobody has ever died from marijuana.”

This is partly true. Nobody has ever died (that we’re aware of yet!) from an overdose – but what about the effects of getting stoned.  Remember – nobody has ever overdosed from tobacco and died, but we don’t say that tobacco is not harmful to our health or hasn’t killed anyone.

The real concern is the effect on mental health and suicide ideation. Marijuana has a variety of other interactions with mental health. Suicidal thoughts can come on very quickly while under the influence in individuals who were not previously suicidal. The suddenness of suicidal ideation means that intervention may not always be possible. 

“Marijuana killed my soul and ruined my brain”

Sally’s son, Andy, committed suicide after becoming addicted to marijuana. In his suicide note, he said “marijuana killed my soul and ruined my brain.”

The Truth about Marijuana

Colorado toxicology reports show the percentage of adolescent suicide victims testing positive for marijuana has increased.

This disturbing trend is, unfortunately, not surprising, as daily marijuana use among youth who begin before the age of 17 significantly increases the risk of suicide attempts. Researchers led by the National Drug and Alcohol Research Centre at the University of New South Wales (and including New Zealand researchers) analysed results of three large, long-running studies from Australia and New Zealand involving nearly 3,800 people. Teenagers who start smoking cannabis daily before the age of 17 are seven times more likely to commit suicide, a study has found.

Massey University drug researcher Dr Chris Wilkins warned,

If you’re using high potency, using daily or if you’ve a history of mental illness or drug addiction it can have serious health problems bringing on mental illness or further addiction.”

And University of Queensland Centre for Youth Substance Abuse professor Wayne Hall said legalising the drug would likely have the most significant impact on current users. If cannabis was made more affordable and easier to access, then consumption would increase, like any commodity.

Deaths associated with marijuana consumption

Exchange student Levy Thamba (19) falls to death in Denver after eating marijuana cookie – April 2014

Luke Goodman (23) fatally shoots himself after eating 5 marijuana candies – Mar 2015

Daniel Juarez (18) Stabbing Suicide Latest Death Linked to Marijuana Intoxication – May 2015

Marc Bullard, 23, Colorado

Brant Clark, 17, Colorado

Shane Robinson, 25, California

Rashaan Salaam, 41, Colorado

Hamza Warsame, 16, Washington

Andy Zorn, 31, Arizona

Tron Dohse, 26, Colorado. Dohse’s death was determined to have been an accident. Unable to find his keys, Dohse climbed up the apartment building and fell.  The toxicology report 27.3 ng. of marijuana in his blood, but no other drugs or alcohol in his system.  As his sister told CBS, she believes marijuana impairment led her brother to make poor decisions the night of his death.

“Neither my husband nor I ever touched illegal drugs, or used pharmaceuticals. Parents who think they raised their kids sensibly, spent quality time with them and modeled a healthy lifestyle need to be forewarned. Our kids are surrounded by a culture of pot. No family is safe.”
Lori Robinson – Shane’s mum



Here in New Zealand, a toxicology test revealed the pilot of the balloon that crashed in Carterton in 2012 had cannabis in his system. Pilot Lance Hopping, 53, and 10 passengers died when the hot air balloon collided with power lines and caught fire near Carterton. Although there was no proof the pilot had used cannabis before the flight, statements from people who knew him, as well as post-mortem forensic tests, revealed that he was a weekly cannabis user and the long term effects of using the drug could have had an “effect on his perception and thinking”.


And don’t forget the effect on driving. Since recreational marijuana was legalised in Colorado, marijuana related traffic deaths increased 151%, more than doubling from 55 in 2013 to 138 people killed in 2017. According to AAA, Washington State experienced a doubling in drugged-driving fatalities in the years following legalisation.

One Mother’s Story

Corinne Gasper’s 22-year-old daughter, Jennifer Hrobuchaka, was killed by a drugged driver in July 2012. “She was driving into work when she was hit by a man high on marijuana, racing through an intersection at 82 miles per hour into her passenger side,” Gasper said.