Johnny Stacks was just 19 when he took his own life after struggling with addiction to marijuana "dabs" that contain high concentrations of THC. More local videos here: https://bit.ly/2Pa0d1l Subscribe to NEXT: http://bit.ly/2eP1GwI Stay connected: 9NEWS Website: http://www.9news.com/ Facebook: https://www.facebook.com/ilike9news Twitter: https://twitter.com/9NEWS Instagram: https://www.instagram.com/9newsdenver/ Google+: https://plus.google.com/+9news/posts Snapchat: Denver9NEWS Pinterest: https://www.pinterest.com/9news/ 9NEWS (KUSA) is located in Denver, Colorado.