#729 seems an important bit of information so far though a good portion of this is guess work.
Adm. Jonathan Greenert, the top U.S. Navy officer and a member of the Joint Chiefs of Staff, was at the Navy Yard during Monday morning’s shooting and was evacuated safely, Defense One has learned.
(snip)
Greenert “was at Navy Yard at time of incident and evacuated safely,” said Cmdr. Ryan Perry, Navy spokesman at the Pentagon. Perry did not provide any casualty estimates but said the Navy is tracking “reports of several wounded/several fatalities.”