An FBI agent and his estranged wife were killed in Crownsville Wednesday morning in what Anne Arundel County police say was a murder-suicide on the day the two were expected back in divorce court. Officers responded to a report of a domestic assault in progress in the 500 block of Arundel Boulevard at 8:05 a.m. Police said the caller had dialed 911 on behalf of another woman who “was being threatened by her recently estranged husband.” Upon arriving at the home, officers found a man and a woman outside a home who’d both been stabbed, the department said, adding that...