Denver Mayor Michael Hancock has opted out of a scheduled speech at the Creating Change gay rights conference because of he believed protestors wouldn't permit him to be heard, his office confirmed. 

Jan. 30: Family of dead teen wants federal probe of police

Those protestors are angry about officers from the Denver Police Department shooting and killing 17-year-old Jessica Hernandez. Police say she was driving a stolen car toward an officer when she was shot. Her funeral is today. The incident is still under investigation.