With pledges, ATF reward grows to $100,000 for ‘person of interest’ in fire that killed three Baltimore firefighters

Jerry Jackson/Baltimore Sun

Baltimore City firefighters work to free colleagues trapped after a partial collapse during a fire in a vacant row house fire on S. Stricker Street Monday morning.

Barbara Haddock Taylor / Baltimore Sun

Baltimore City firefighters are still on the scene of a 3-story vacant rowhouse fire in the 200 block of South Stricker Street. Three Firefighters have been transported to the hospital in serious condition with the crews still working to recover a fourth firefighter inside.

Jerry Jackson/Baltimore Sun

Baltimore City firefighters salute as an ambulance carries the body of Lt. Paul Butrim from the scene of a vacant row house fire on S. Stricker Street. Four firefighters were trapped in a collapse while fighting the fire Monday morning. Three have died and a fourth is in critical condition.

Barbara Haddock Taylor / Baltimore Sun

Baltimore City firefighters are still on the scene of a 3-story vacant rowhouse fire in the 200 block of South Stricker Street. Three Firefighters have been transported to the hospital in serious condition with the crews still working to recover a fourth firefighter inside.

Barbara Haddock Taylor/Baltimore Sun

Officers wait outside Shock Trauma in Baltimore where injured firefighters were taken following a fire and building collapse in the New Southwest/Mount Clare neighborhood Monday morning.

Jerry Jackson/Baltimore Sun

Baltimore City mayor Brandon Scott (right) stands with fire department leadership as firefighters work to free colleagues trapped after a partial collapse during a fire in a vacant row house fire on S. Stricker Street Monday morning.

Barbara Haddock Taylor / Baltimore Sun

Baltimore City firefighters are still on the scene of a 3-story vacant rowhouse fire in the 200 block of South Stricker Street. Three Firefighters have been transported to the hospital in serious condition with the crews still working to recover a fourth firefighter inside.

Jerry Jackson / Baltimore Sun

Baltimore City firefighters at the scene of a two-alarm fire in the 200 block of South Stricker Street. Three firefighters have been transported to the hospital in serious condition with one firefighter trapped inside.

Jerry Jackson/Baltimore Sun

A pair of Baltimore City firefighters talks after battling a fire in a vacant row home on S. Stricker Street in which four firefighters were trapped after a partial collapse.

Jerry Jackson/Baltimore Sun

Members of the Baltimore City Fire Department walk away from the scene of a vacant row house fire on S. Stricker Street where four firefighters had been trapped.

Jerry Jackson/Baltimore Sun

Baltimore City firefighters embrace after the body of Lt. Paul Butrim is recovered from the scene of a vacant row house fire on S. Stricker Street. Four firefighters were trapped in a collapse while fighting the fire Monday morning. Three have died and a fourth is in critical condition.

Jerry Jackson/Baltimore Sun

Baltimore City firefighters line West Pratt Street to honor fallen comrade Lt. Paul Butrim at the scene of a vacant row house fire on S. Stricker Street. Four firefighters were trapped in a collapse while fighting the fire Monday morning. Three have died and a fourth is in critical condition.

Jerry Jackson/Baltimore Sun

Baltimore City firefighters embrace at the scene of a vacant row house fire on S. Stricker Street where four firefighters had been trapped.

Jerry Jackson / Baltimore Sun

Baltimore City firefighters at the scene of a two-alarm fire in the 200 block of South Stricker Street. Three firefighters have been transported to the hospital in serious condition with one firefighter trapped inside.

Barbara Haddock Taylor / Baltimore Sun

A firefighter observes the scene from a ladder of the area of a 3-story vacant rowhouse fire in the 200 block of South Stricker Street. Three Firefighters have been transported to the hospital in serious condition with the crews still working to recover a fourth firefighter inside.

Jerry Jackson/Baltimore Sun

Baltimore City firefighters watch as an excavator removes debris during the search for a firefighter at the scene of a vacant row house fire on S. Stricker Street. Four firefighters were trapped in a collapse while fighting the fire Monday morning. Three have died and a fourth is in critical condition.

Jerry Jackson/Baltimore Sun

Baltimore City firefighters embrace after the body of Lt. Paul Butrim is takenfrom the scene of a vacant row house fire on S. Stricker Street. Four firefighters were trapped in a collapse while fighting the fire Monday morning. Three have died and a fourth is in critical condition.

Kevin Richardson/Baltimore Sun

Baltimore City Fire Department Chief Niles Ford outside the University of Maryland Medical Center Shock Trauma Center speaks following the death of three Baltimore firefighters who were killed in a fire. A fourth firefighter remains hospitalized in critical but stable condition.

Jerry Jackson/Baltimore Sun

Baltimore City firefighters watch as an excavator removes debris during the search for a firefighter at the scene of a vacant row house fire on S. Stricker Street. Four firefighters were trapped in a collapse while fighting the fire Monday morning. Three have died and a fourth is in critical condition.

Jerry Jackson/Baltimore Sun

Baltimore City firefighters work a fire at a vacant row home in which four firefighters were trapped after a partial collapse on S. Stricker Street Monday morning.

Jerry Jackson/Baltimore Sun

An excavator sits the remains of a vacant row house on Stricker Street as ATF investigators search for the cause of a fire that resulted in the death of three Baltimore City firefighters Monday morning.

Barbara Haddock Taylor / Baltimore Sun

A firefighter observes the scene from a ladder of the area of a 3-story vacant rowhouse fire in the 200 block of South Stricker Street. Three Firefighters have been transported to the hospital in serious condition with the crews still working to recover a fourth firefighter inside.

Barbara Haddock Taylor / Baltimore Sun

Firefighters observe the scene of debris from a 3-story vacant rowhouse fire in the 200 block of South Stricker Street. Three Firefighters have been transported to the hospital in serious condition with the crews still working to recover a fourth firefighter inside.

Jerry Jackson/Baltimore Sun

A firefighter and a woman embrace at the scene of a vacant row house fire on S. Stricker Street where four firefighters had been trapped.

Barbara Haddock Taylor / Baltimore Sun

Firefighters observe the scene of debris from a 3-story vacant rowhouse fire in the 200 block of South Stricker Street. Three Firefighters have been transported to the hospital in serious condition with the crews still working to recover a fourth firefighter inside.

Jerry Jackson/Baltimore Sun

An investigator with the Maryland State Fire Marshal's office documents the scene of a vacant row house fire on S. Stricker Street where four firefighters had been trapped.

Kevin Richardson/Baltimore Sun

Baltimore City Fire Department Chief Niles Ford outside the University of Maryland Medical Center Shock Trauma Center speaks following the death of three Baltimore firefighters who were killed in a fire. A fourth firefighter remains hospitalized in critical but stable condition.

Barbara Haddock Taylor / Baltimore Sun

Baltimore City firefighters are still on the scene of a 3-story vacant rowhouse fire in the 200 block of South Stricker Street. Three Firefighters have been transported to the hospital in serious condition with the crews still working to recover a fourth firefighter inside.

Jerry Jackson/Baltimore Sun

Baltimore City firefighters pause as the body of Lt. Paul Butrim is taken from the scene of a vacant row house fire on S. Stricker Street. Four firefighters were trapped in a collapse while fighting the fire Monday morning. Three have died and a fourth is in critical condition.

Jerry Jackson/Baltimore Sun

Baltimore City firefighters work to free firefighters trapped after a partial collapse during a fire in a vacant row house fire on S. Stricker Street Monday morning.

Jerry Jackson/Baltimore Sun

Baltimore City firefighters work to free colleagues trapped after a partial collapse during a fire in a vacant row house fire on S. Stricker Street Monday morning.

Jerry Jackson/Baltimore Sun

Baltimore City firefighters work to free firefighters trapped after a partial collapse during a fire in a vacant row house fire on S. Stricker Street Monday morning.

Jerry Jackson/Baltimore Sun

Baltimore City firefighters salute the body of Lt. Paul Butrim is taken from the scene of a vacant row house fire on S. Stricker Street. Four firefighters were trapped in a collapse while fighting the fire Monday morning. Three have died and a fourth is in critical condition.

Jerry Jackson/Baltimore Sun

Baltimore City firefighters console each other as work continues to free one of four firefighters that were trapped battling a fire at a vacant row home on S. Stricker Street Monday morning.

Kevin Richardson/Baltimore Sun

Dr. Thomas Scalea, physician in chief of the University of Maryland R. Adams Cowley Shock Trauma Center speaks following the death of three Baltimore firefighters who were killed in a fire. A fourth firefighter remains hospitalized in critical but stable condition.

Kevin Richardson/Baltimore Sun

Baltimore City Mayor Brandon M. Scott is joined by Fire Department Chief Niles Ford, right, outside the University of Maryland Medical Center Shock Trauma Center as they speak following the death of three Baltimore firefighters who were killed in a fire. A fourth firefighter remains hospitalized in critical but stable condition.

Jerry Jackson/Baltimore Sun

Baltimore City firefighters work to free colleagues trapped after a partial collapse during a fire in a vacant row house fire on S. Stricker Street Monday morning.

Jerry Jackson/Baltimore Sun

Baltimore City firefighters work a fire at a vacant row home in which four firefighters were trapped after a partial collapse on S. Stricker Street Monday morning.