Photos: City Mourns Fallen Firefighters After Blaze Rips Through Brownstone

Michael Morrison, who's up from Martha's Vineyard getting cancer treatment in Boston, visits a makeshift memorial at the Engine 33 fire station on Thursday. Engine 33 was the station of fallen firefighters Lt. Edward Walsh and Michael Kennedy. (Jesse Costa/WBUR)

(Jesse Costa/WBUR)

MIT police officers add flowers to the makeshift memorial Thursday. (Jesse Costa/WBUR)

Michael Rose stops his training run for next month's Boston Marathon to pay tribute to the fallen firefighters. (Jesse Costa/WBUR)

Firefighter Michael Kennedy, left, and Lt. Edward Walsh died Wednesday. (Boston Fire Department)

Boston Fire Deputy Chief Joseph Finn says he's never seen a fire travel as fast as the blaze that took two of his firefighters' lives. (Jesse Costa/WBUR)

Firefighters were at the scene through the night trying to extinguish the last flames. (Jesse Costa/WBUR)

The fire broke out around 2:43 p.m. Wednesday. (Jesse Costa/WBUR)

The Wednesday afternoon fire killed two firefighters and left 13 others injured. (Jesse Costa/WBUR)

At the height of the fire Wednesday afternoon the smoke was thick and dark. (Jesse Costa/WBUR)

The cause of the Beacon Street fire is under investigation. (Jesse Costa/WBUR)

The fire department spokesman said fire walls apparently stopped the blaze from spreading to neighboring buildings. (Jesse Costa/WBUR)

Officials said firefighters rescued several residents from the upper floors. (Jesse Costa/WBUR)

The deadly fired snarled traffic in the densely populated neighborhood, shutting down Beacon Street and Storrow Drive for hours. (Jesse Costa/WBUR)

Firefighters and emergency medical personnel rush a firefighter from the scene. (Scott Eisen/AP)

“Citizens were saved, and that’s what we do,” Richard Paris, president of the local firefighters union said during the press conference. “We sacrifice our life for the citizens of Boston.” (Steve Senne/AP)