Sacramento Police investigators don't believe a homeless man found dead near an American River levee Tuesday morning was the victim of a homicide. The Sacramento County coroner must determine the cause of death. The man, believed to be in his 30s, died at his secluded campsite below a popular bike trail near the former Tent City. The family has not yet been notified, so officials are not releasing the man's name, said Sacramento Police Sgt. Norm Leong. Another homeless person found the man dead in a wooded area behind a commercial/residential neighborhood near 16th and North C streets and reported the death to police at 7:56 a.m. The area, which is used by homeless campers, sits betwee