In the attack at the private Jewish school Ozar Hatorah on Monday, a man wearing a motorcycle helmet and driving a motorscooter pulled up and shot a teacher and three children -- two of them the teacher's young sons -- in the head.
Chen Guangfu said he was followed by a black car without a license plate while he was on a motor-scooter visiting a relative in another village in Shandong province.
Developed by Intelligent Energy, the global clean power systems company, and Suzuki Motor Corporation, introduced the scooter at the 41st Tokyo Motor Show in October 2009.