NPR's Quil Lawrence reports that Connecticut state police Lieutenant Paul Vance says it could take weeks to get a complete picture of what happened at Sandy Hook Elementary.

据NPR新闻的奎尔·劳伦斯报道，康涅狄格州警察中尉保罗·万斯表示，彻底查清桑迪胡克小学发生的枪击案需要几周的时间。