(AP) — Police in Lincoln continue to search for answers after a mentally disabled man was beaten to death last weekend.

Officers found 20-year-old Nathan Walton, known as Shane, two blocks away from his house early Saturday.

Investigators think his attacker, or attackers, used a club-like weapon to repeatedly beat Walton on the head.

Walton was taken off life support Tuesday night.

Police say that although they don’t yet have much information, they’re looking for a full-sized red pickup with a ladder rack.