I heard the names myself but I think he guessed on the spelling.
Almost a dozen law enforcement agencies in Watertown and Newton.
Reminds me of a 40-man Raid or 25-man Battleground xD
EDIT:
To clarify the facts as I know from the scanner:
One suspect still at large, still being persued by an army of law enforcement (I shit you not on the army part lol).
Two suspects in custody in Watertown. It is not known if they are connected to the MIT shooting, the Bombing, the Carjacking after the MIT shooting or the reported robbery in Newton. Ditto for the one still at large.
One MIT Officer fatally shot, which sparked the manhunt.
FBI is involved because they want to find out if the suspects in custody are connected to the bombing.
Multiple officers confirm explosives found in Watertown.