UPDATE:, 9:40 p.m. Northbound Red Line still a mess.
Mirto Picchi posted this photo at 8:27 p.m., reports that train had been "arriving" for several minutes.
Hong Pong was on the Alewife-bound car that caused all the problems. At 7:51 p.m., he posted a photo of an emergency brake lever that somebody pulled on his Red Line car just as it left Downtown Crossing. Read more.