A 25-year-old Herzliya resident was arrested on Monday night on suspicion of beating a 70-year-old man with a pole.
Police said that the victim was walking home from synagogue last Saturday when he was attacked by the suspect, who was only recently released from jail.
The younger man reportedly beat the victim over the head repeatedly, and then fled the scene.
The man was evacuated to Kfar Saba's Meir Medical Center for treatment.
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