McGregor was on a business trip with team chairman and CEO Charlie Monfort and executive vice president Greg Feasel. When his associates could not get a hold of him on the phone, someone entered his room and found him unconscious.
Around 11 a.m. the local police were called to the Grand America Hotel. Paramedics arrived on the scene but were unable to revive him. McGregor was 48 years old.
“Words cannot describe the level of shock and disbelief that we all are feeling this morning at the loss of Keli,” team Chairman and CEO Charlie Monfort said in a statement.
“Our thoughts, our prayers are with [his wife] Lori and the entire family as we all try to cope and understand how such a tragic loss could occur with such a wonderful man.”
McGregor had worked for the Colorado Rockies organization since 1993. He became the team president in October of 2001.
The cause of his death is unknown, although police said they did not suspect foul play. Our thoughts go out to his family.