KDVR reported that Belich arrived at 24 Hour Fitness in Littleton about 1 p.m. March 29, went into the sauna and passed out from the heat. The coroner determined that Belich's death was accidental and the cause was kidney failure brought about by dehydration.

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The New York Daily News reported that "gym staffers are supposed to check the locker rooms hourly during the day and once at night, [but] no one seemed to have noticed Belich's body."

There may not have been a routine check, the gym says, because there may not have been a female employee available to check the female locker room area.

“[24 Hour Fitness] employees do hourly ‘team cleans’ of the club, but that would not include the women’s locker room area unless a female employee was working. At the end of the night, the closing employee was supposed to walk the entire club to be sure everyone exited. That obviously was not done,” the gym said in a statement to KDVR.

It was another gym member, Sonya Wasinger, who found the woman’s body at 7:45 a.m. the next day.

"I wish I could've gone in and found her and revived her," Wasinger said tearfully in an interview with KDVR. "Obviously, they didn't bother to make rounds of the facility to make sure that everybody's alright."

The gym has not said if disciplinary action was taken against employees.