Big Island police today charged a Hawaiian Ocean View Estates man with trying to kill another man Sunday in Ka'u.

Anthony David Hartz, 34, was charged shortly after 2 p.m. with one count of second-degree attempted murder and one count of first-degree terroristic threatening. He is being held in lieu of $55,000 bail at the Kona police cellblock.

A 28-year-old Kealakekua woman arrested Monday with Hartz was released today pending further investigation.

Hartz is accused of attacking a 33-year-old Hawaiian Ocean View Estates resident. The victim was on a motorcycle, which police said was intentionally struck by a gold sports utility vehicle driven by Hartz. While the victim was on the ground, Hartz allegedly hit him on the head with a football-sized rock.

The victim suffered a compound fracture of his right leg and other injuries. Police said he is in stable condition at The Queen's Medical Center.