What we know about the 4 additional victims shot by deranged DC doctor Matt Lambert

The crazed killer went out on his private patio off his seventh-floor penthouse and began wildly shooting at people below, authorities said. 

What we know about the 4 additional victims shot by deranged DC doctor Matt Lambert
The crazed killer went out on his private patio off his seventh-floor penthouse and began wildly shooting at people below, authorities said.