Video shows the suspected attacker who attacked crowds in Taipei, Taiwan, with a knife and smoke grenades, killing at least three people and injuring nine others. The suspect later fell to his death from a department store building. The suspect, identified as a 27-year-old man named Chang Wen, threw a smoke grenade near an underground exit of the Taipei Main subway station, close to the city's main train station, sending pedestrians running, according to local media reports. He then headed north