A Hilo man involved in a confrontation on Halloween died Wednesday.

Alfred Vea, 49, of Hilo was pronounced dead at The Queen’s Medical Center at 10:34 a.m. Wednesday. An autopsy will be performed today to determine the exact cause of death, Hawaii island police said.

The case is now being investigated as second-degree murder, police said.

Police received a call at 11:30 p.m. Saturday that Vea was involved in a confrontation and was unconscious in a parking lot on the 100 block of Hema Street. Witnesses reported that the other man had left the area.

Vea was taken to Hilo Medical Center with a head injury and later transferred to Queen’s.

A 31-year-old Mountain View man turned himself in to police Tuesday morning and remains in custody, but has not be charged as the investigation continues, police said.