Police were cautious about linking the two shootings pending further investigation.They said only that a male gunman was involved in the second shootings, but that he carried no identification papers.

• 警察在深入调查前对将两起枪杀事件联系在一起十分谨慎；他们只是说到:一持枪男性涉及第二次枪击.；但他没有身份证