another
Weird 'n Grisly placemark..

The brutal Christmas murder of the little beauty pageant queen in her upscale Boulder home (placemarked here) caught the world's attention.

JonBenet Ramsey's mother Patsy phoned 911 early on the morning of December 26, 1996 reporting that her daughter was missing and that she'd found a ransom note. Shortly after the police arrived, John Ramsey found his daughter's garotte-strangled body in the basement.
Autopsy results also reported a fractured skull and sexual assault on the six year old.
John and/or Patsy Ramsey became suspects and remain under suspicion by many, but they were never charged. There have been many allegations of police errors and oversights at the crime scene and in the ensuing investigation.

Today there's an internet subculture devoted to both JonBenet and her murder, which remains unsolved. She would have been almost 15 years old now.
There's a wealth of info about this case on the web. Court TV's
Crime Library is a good place to start.