An Interactive Image

12:34:12 The other fire trucks arrive on scene after encountering traffic on Hinchey Avenue.

Taylor and Barrett entered and exited this fourth-floor window at 193 Forward Ave. www.flickr.com

Chatterton, Witham and Campbell jumped from this fourth-floor window at 197 Forward Ave. www.flickr.com

12:51:03 Five firefighters are assisting the injured from Pump 11B. Ambulances are on the way.

12:38:23 The district chief declares a second alarm, triggering the response of more fire trucks.

12:33:40 The district chief arrives on scene and advises, “A dead-end street, three-storey, fully- involved in more than one place with people trapped on the third floor.” (The buildings are actually four storeys tall, but appear to be three.)

12:36:41 Lt. John Chatterton and two other members of Pump 11B are directed to help conduct a search of the “building of origin” after the rescued man mistakenly reports that his mother is still inside.

Graphic created by Robert Cross for the Ottawa Citizen. Story by Andrew Duffy www.ottawacitizen.com

12:28:05 p.m. Fire dispatch receives a report of a fire on a balcony; Car 10, Pump 11, Pump 11B and Ladder 11 are dispatched

12:34:57 Lt. Tim Taylor and firefighter Gerald Barrett ride the extending ladder to the window. The ladder operator, relying on hand signals for directions, strikes the window frame with the ladder. www.flickr.com

12:37:30 Chatterton, firefighter Robert Witham, and probationary firefighter Carissa Campbell force their way into 197 Forward Ave. Meanwhile, Taylor and Barrett climb back up the aerial ladder and enter 193 Forward Ave. through the fourth-storey window. Ladder 11’s operator climbs to the top of the ladder to act as a “beacon” for them, using a spotlight and his voice. www.flickr.com

12:43:22 Chatterton radios from inside 197 Forward Ave: “We are in trouble … trapped … get some doors and windows open.” The 11B crew, descending from the fourth to the third floor, becomes enveloped by smoke and heat. Chatterton’s radio message goes unacknowledged.

Chatterton, Witham and Campbell entered the front door at 197 Forward Ave. www.flickr.com

12:34:32 District chief acknowledges that two buildings are on fire and orders Ladder 11 to raise its hydraulic ladder to rescue the man in the window at 193 Forward Ave.

12:43:42 A third alarm is declared.

12:46:55 Barrett and Taylor return to their entry point, but their ladder has been moved. Ladder 11 is “locked out” and temporarily useless. Barrett jumps out the window and lands on a porch roof two levels below; he jams his foot into the eavestrough to stop his fall. Taylor follows, but becomes entangled in the drapes and tumbles out head-first. Barrett grabs him and stops him from tumbling off the roof. www.flickr.com

12:43:49 A breakdown in radio communications occurs as static begins to interfere with transmissions. The heat of the fire has melted the wire insulation on Witham’s radio, creating an open microphone. Dispatch reports receiving a “man down” alarm. The heat of the fire has also melted the insulation on Chatterton’s radio, triggering the alarm. With heat and smoke offering no other escape, Chatterton leads his team to the side window of 197 Forward Ave. He waits as his two crew members, Witham and Campbell, jump out the fourth-storey window. The operator of Ladder 11, believing that it is Taylor and Barrett at the side window, descends to move his ladder into place to help them. He is ordered to rotate the ladder to the side of the house. www.flickr.com

12:46:00 Two firefighters move Campbell away from the building as Witham hangs from the window sill, about to drop. Chatterton waits until Witham has cleared the landing area before he, too, jumps out of the window. Ladder 11 does not respond to the controls as its operator tries to move it into place.