The photo of two men standing on a mountain of bison skulls is well known as a symbol of hunting during colonisation of the US. But there's a more sinister story that lies behind it.

Portions of South Mountain Park and Preserve were shut down as Phoenix police investigators searched for evidence in a homicide. Detectives were investigating a human skull that was found at South ...

Phoenix officers were called to South Mountain Park near South Central Avenue and West Las Ramadas Drive around 1:50 p.m. after a hiker reported finding a human skull.

The skull showed signs of trauma. South Mountain Park includes 16,000 acres with over 50 miles of trails and three mountain ranges, according to the City of Phoenix.

The photo of two men standing on a mountain of bison skulls is well known as a symbol of hunting during colonisation of the US. But there's a more sinister story that lies behind it.