The reality TV personality was only 38 years old. Discovery Channel confirmed Reyes death to us and said it was "very sad news." Their statement read, "Our thoughts and prayers go to his family."
Moreover, the Flathead County Sheriffs Office told E! News Reyes passed away in his hometown of Whitefish, Montana. At this time, the stars official cause of death is pending as they await the autopsy and toxicology reports.
According to TMZ, who first broke the news, Reyes passed away after suffering from a heart attack on Saturday, July 25. Reyes wife, Heather Sullivan, told the publication that her husband was hospitalized soon after.
While Reyes survived the heart attack, Sullivan explained that he never regained consciousness and was taken off life support the following day. The stars wife also stated that he didnt have any known pre-existing health conditions.
"Hello everyone this is Heather, we have a memory page for Mahlon, Forever Chim," a message read on the stars Facebook page on Wednesday, July 29. "Send me a friend request and I can get added Heather B. Sullivan. He touched so many lives and he is up there smiling and watching over my protector from the sky."
In light of the news, Nick McGlashan, took to social media to share his heartache over Reyes passing. "Love you Mahlonn m v youre missed. RIP," he wrote on Twitter.