Dayum.

I had heard he had a heart attack, but didn't know he died.

Man dies during Bolder Boulder

'BOULDER – For the first time in its 29-year history, a person participating in the Bolder Boulder has died.

Race organizers say 65-year-old Ross "Jack" Lowe of Littleton collapsed on Monday at 19th Street and Balsam, halfway through the race just before 9:45 a.m.

Paramedics on bicycles rushed to his aid but he was pronounced dead later after being taken to Boulder Community Hospital.

The paramedics on bicycles were able to treat Lowe in under a minute with a defibrillator and a breathing tube, according to race organizers.

A medical spokesman for the race says Lowe had a scar on his chest that suggests he could have had a previous cardiac surgery.'