这里。意思是说，警察知道在那种self storage 的某一个unit 里面？那就是不敢或者不肯现在就进去抓人？

Reba Saldanha/AP

Authorities believe the suspect in the Brown University shooting may be inside a specific storage unit in Salem, New Hampshire, two law enforcement sources briefed on the investigation told CNN.

Law enforcement officials are swarming the area where they found an abandoned car with a license plate believed to be connected to the suspect as the manhunt continues in day six.