Denver Police say the suspected gunman is a private security guard; Fox News correspondent Christina Coleman reports.
The man shot dead at a Denver protest was a military veteran, grandfather and avowed patriot who was there to express his support for police and died as his son looked on in horror, according to his mom.
Lee Keltner was identified by his mother, Carol, in a Facebook post to the group Northeast Arkansas Tea Party Group. The heartbroken mom said her grandson was with his father when he was killed by a man working as a security guard for a local TV station.-- More...