Federal agents seized more than 42 kilograms of fentanyl, multiple firearms and a live alligator from a luxury downtown Los Angeles apartment on Thursday, Sept. 10.

Marvin Angelito, 27, and Susan Gonzalez, 26, were arrested that morning and charged with possession with intent to distribute fentanyl, the Justice Department announced Tuesday, Sept. 15. Both are accused of living in the apartment, which investigators described in the criminal complaint as a "known drug trafficking location." Neither defendant has entered a plea.

The pair appeared in U.S. District Court in downtown Los Angeles on Monday, Sept. 14. U.S. Magistrate Judge Karen L. Stevenson ordered Angelito detained and released Gonzalez on $15,000 bond.

Agents executing the search warrant found Angelito and Gonzalez asleep in the bedroom around 5:30 a.m., the Los Angeles Times reported, citing the criminal complaint. Inside the unit, authorities recovered roughly 42.6 kilograms of fentanyl pills and powder, 7.2 kilograms of cocaine and one kilogram of heroin.

They also found drug-manufacturing equipment, including beakers, mixers, a hydraulic press and torches. An AR-15 rifle with ammunition sat in a hallway closet. A gold-plated Desert Eagle .50-caliber pistol with ammunition was on the kitchen counter. Agents also seized a police radio.

A small alligator was found in a glass tank with water inside the apartment.

U.S. Fish and Wildlife Service agents took custody of the animal. During the search, a K-9 used to detect hidden drug compartments became disoriented and began to collapse from suspected fentanyl exposure, according to the Times. The handler revived the dog with Narcan.

The apartment is Unit 4513 in the Olympic + Hill building on Olympic Boulevard, where one-bedroom units can rent for more than $3,000 a month, the Times reported. The investigation began over the summer when an FBI confidential source arranged to pay $125,000 for 500,000 "M30" fentanyl pills from an alleged drug trafficker named Anthony Rea, according to the complaint. After Rea agreed to a video call to show the drugs, federal agents tracked him and an associate to the building, FBI Special Agent Brent James wrote in an affidavit.

On the video call, Rea's associate described the stash house as "official," according to the affidavit cited by the Times.

Assistant U.S. Attorney Lloyd Masson is prosecuting the case. The FBI New Haven Homeland Security Task Force, the FBI Los Angeles Regional Narcotics Suppression Program and the Drug Enforcement Administration are investigating.

If convicted, both defendants face a statutory maximum sentence of life in federal prison. Angelito's arraignment is scheduled for Oct. 2 and Gonzalez's for Oct. 9.

Residents can report drug trafficking tips to the FBI's Los Angeles field office or the DEA.