Los Angeles Police Department Cmdr. Andrew Smith called the number of rifles, pistols and shotguns staggering.
Many had never been fired and some were still wrapped in boxes, with price tags attached.
“Our truck couldn’t carry it all,” Smith told the Los Angeles Times. “We had to go back and make another trip.”
There were no signs of foul play in the death. Police have found no evidence the man, who has not been identified, was involved in criminal activity.
The man’s decomposing body was found in a car down the street from his home, in the Pacific Palisades neighbourhood.
Detectives want to find out why he had so many guns and are examining the weapons to determine if they have been linked to any crime.
“We have a lot of work to do,” Smith said.
“Running the background, history and legality of these weapons is going to require a tremendous amount of time.”
“It’s not a crime to have a large number of weapons, so long as they were legal to own and legally obtained,” Smith added.
“We want to make sure that’s the case.”