April 4 (UPI) -- A fourth man suspected of being involved in an attack on a Jewish volunteer ambulance service was arrested when he attended a hearing for three of his alleged accomplices. On March 26, four ambulances that belong to a Jewish community organization were torched in the Golders Green area of North London in an attack that police said was aimed at terrorizing the Jewish community there. Police on Saturday arrested a fourth suspect in the attack during a hearing for three people --