Arapahoe County, CO, sheriff's deputies shot and killed a former colleague Sunday night after the man reportedly pointed a gun at them. 

The Arapahoe County Sheriff's Office confirmed that the man shot was former deputy Mark Bidon. The 50-year-old worked at the sheriff's office from 2000 to his resignation in 2010, according to a news release. 

According to Julie Brooks, a spokeswoman for the sheriff’s office, the shooting happened around 9:45.

Brooks told KUSA TV the shooting occurred at the employee entrance to the sheriff’s office, which has a security gate.