A man seriously injured in an attack last summer in Tonawanda has died.

Michael Zuch, 54, died early Friday.

On Sunday, August 4, Zuch was walking near the intersection of Grove Place and Grove Street in the city of Tonawanda when he was allegedly approached by Avery Hunter, 24.

The two men did not know each other. After a brief altercation, Hunter allegedly rode off on a bicycle, then turned around and confronted Zuch a second time, punching Zuch in the face.

Zuch, who had Huntington’s disease, fell to the ground and hit his head on the sidewalk, causing him to lose consciousness. He suffered a broken jaw, concussion and a brain bleed. He spent several weeks at a hospital before being transferred to a rehabilitation center.

Hunter was charged with second-degree assault at the time.

The Erie County Medical Examiner’s Office will conduct an autopsy to determine cause of death.