Who killed Bank of America VP in Times Square?

Erin Piacenti, 32, a Bank of America vice president, was fatally stabbed while walking home from work in Times Square on Monday evening [1, 2]. Police shot dead the attacker, a 49-year-old woman armed with two kitchen knives who was reported to have stabbed two people at random and refused to drop her weapons even after being tasered [2]. The stories provided don't give the attacker's name.