The landlord of the property, Doyle Miller, used a crowbar to pull back a wooden board placed in front of the door. Media members then entered the home, located in the 50 block of North Center Street.
The door frame of the home was twisted and windows were busted out during overnight searches Thursday conducted by investigators with the FBI and local law enforcement agencies. The property was given back to the landlord once the searches were finished, according to FBI officials.
PHOTOS: Inside Redlands home of San Bernardino shooting suspects
Toys, prayer books and packed suitcases were strewn about the living room floor and dozens of photos and personal documents were scattered in a bathroom, on a bed and in another room in the two-story unit.
The overnight searches yielded a dozen pipe bombs as well as hundreds of tools for making more of the explosives, and over 3,000 more rounds of ammunition, authorities said.
"There were another 2,000 nine-millimeter rounds found at that house, over 2,500 223 rounds, and there were several hundred long rifle rounds that were found there," said San Bernardino Police Chief Jarrod Burguan.
The location of the Redlands home was given to police in a tip Wednesday that ultimately led to the shooting and the killing of the two suspects, Syed Rizwan Farook, 28, and his wife Tashfeen Malik, 29.
Authorities confirmed that Farook and Malik were listed on the home's rental agreement and the landlord said the couple had lived at the apartment unit since May.
Miller said the couple seemed normal and did not cause any problems while they lived on the property.
Redlands police, SWAT, FBI and other law enforcement agencies served a search warrant at the home Wednesday night. Robots were spotted going inside the location and explosions were heard going off as authorities surrounded the area.
One neighbor was working in San Bernardino across the street from the Inland Regional Center when bullets began to fly, and came home to get away from the dangerous situation only to find the investigation on his street.
"It's really disheartening and scary because this little sleepy town," resident Faith Sanders said. "We don't have this kind of thing happen in our town."
Farook and Malik were dressed for battle and heavily armed when they opened fire at a holiday luncheon hosted by the San Bernardino County Health Department at the Inland Regional Center on Wednesday, killing 14 and injuring 21 others.
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