After graduating in 2011, Rich was quickly hired by a national polling company and moved to the District. Two years later, he went to the Democratic National Committee, where he worked on the development of a computer program that allows people to enter their names and have maps drawn to their polling places. It required data culled from every voter precinct in the country. The DNC’s chairwoman, Rep. Debbie Wasserman Schultz (Fla.), said in a statement that Rich worked “to protect the most sacred right we share as Americans — the right to vote.”
First comment here apparently from an ‘ear witness’:
http://bloomingdaleneighborhood.blogspot.com/2016/07/shooting-at-flagler-w-street-nw-last.html
Early arrival of the police on the scene might explain lack of an immediate kill shot by the perp(s).