Jewish man's death at California rally complicated by conflicting witness accounts

California police have identified and searched the home of a pro-Palestinian counter-protester as their prime suspect in the death of Jewish Paul Kessler. No arrests have been made, however, as conflicting witness accounts complicate authorities' investigation.

Kessler died hours after hitting his head on the pavement during the altercation with the unnamed suspect at competing street corner rallies on Sunday, police said. Now, Ventura County Sheriff's deputies are trying to piece together what led the 69-year-old to fall.

The father-of-two was pronounced dead at Los Robles hospital at 1:10 a.m. on Monday. Initially, per witness footage reviewed by Fox News Digital, the 69-year old was bloodied but alert and speaking at the scene. An autopsy determined Kessler's cause of death to be blunt force head trauma, and the manner of death homicide, Chief Medical Examiner Christopher Young said at the conference.

However, Young carefully noted, "the manner of death is not a medical legal determination." Non-lethal injuries were noted on the left side of Kessler's face, while internal injuries included skull fractures, swelling and bruising to the brain.

"There was clearly an interaction between the two, but what that level of interaction is, is still unclear," Ventura County Sheriff James Fryhoff said of the investigation.

Investigators have not ruled out the possibility of a hate crime in Kessler's death.