HOUSTON -

Police are investigating the death of a man originally believed to have died from natural causes.

Joseph Fox, 56, was found dead in his bed in the 1000 block of Henry in north Houston Tuesday evening.

Houston police said Fox had a history of medical conditions.

When investigators with the Harris County Institute of Forensic Sciences arrived to pick up Fox's body, they found a large amount of bruising and many contusions on his body, detectives said.

The cause of Fox's death will be determined through an autopsy.

Anyone with information is asked to call the HPD Homicide Division at 713-308-3600.