Members from fire departments from Jay, Livermore Falls and Wilton hoist an American flag over Farmington Falls Road at the town line Thursday as Capt. Timothy Hardy returns home from the hospital.

An investigator labels evidence at the site of the former LEAP building at 313 Farmington Falls Road on Thursday. The building was flattened from Monday's deadly propane explosion.

Investigators gather at the site of the former LEAP building at 313 Farmington Falls Road on Thursday. The building was flattened from Monday's deadly propane explosion.

Investigators remove a pipe from the ground at the site of the former LEAP building at 313 Farmington Falls Road on Thursday. The building was flattened from Monday's deadly propane explosion.

Jennings Pinkham, a firefighter with the Farmington Fire Department, washes the debris and dust from the Tower 3 fire engine at the department headquarters on Thursday. Tower 3 was on site when the LEAP building was flattened by a deadly propane explosion on Monday.

Jennings Pinkham, a firefighter with the Farmington Fire Department, washes the debris and dust from Tower 3 at the department on Thursday. Tower 3 was on site when the LEAP building was flattened by a deadly propane explosion on Monday.

Farmington firefighter Jennings Pinkham washes a fire truck with other firefighters at the Farmington fire station on Thursday.

A firefighter runs a hose to control dust as officials clear and work the LEAP explosion site in Farmington on Thursday.

Officials observe as cleanup and other work takes place Thursday at the LEAP building explosion site in Farmington.

Officials observe as cleanup and other work takes place Thursday at the LEAP building explosion site in Farmington.

Farmington firefighter Taylor Bates washes a fire truck with other firefighters Thursday at the Farmington fire station.

A firefighter pulls a hose line into place Thursday before an area is sprayed to control dust at the LEAP building explosion site in Farmington.