美国田纳西州近日发现一起人伦悲剧，一名到外地工作的男子抽空用手机与家中的监控摄影机连线，未料看见妻子正被人勒死，而下手的竟是自己19岁儿子。目前，行凶男子已经落网，被检方依谋杀罪起诉。 综合外媒报

The caller told police he was about eight hours out of town but had just reviewed home s