Five San Bernardino County residents are among twenty Southern California residents who have been criminally charged by federal prosecutors after they were caught in a dragnet conducted the by federal Drug Enforcement Administration agents and local police agencies.
According to court documents, Kevin Lopez, 24, of Rancho Cucamonga, Jacqueline Carolina Fonseca-Flores, 24, of Rancho Cucamonga, Brandon Ryan Osika, 22, of Ontario and Meloney Osika, 24, of Ontario, were involved in a fentanyl-distribution enterprise. At least one of their customers died after ingesting the drug Lopez, Flores and Brandon Osika had provided. That victim died in January. Meloney Osika, who was arrested with the others on May 7, has not been charged in relation to that death but the other three are named in an indictment in which they are charged with having furnished fentanyl to a person under the age of 21 resulting in death,
The Fontana Police Department and the Drug Enforcement Agency investigated the case.
A federal judge ordered all four defendants jailed without bond. The defendants pleaded not guilty to the charges against them and the trial for all four is slated to begin on June 23.
Assistant United States Attorney Christopher M. Brunwin of the Riverside Branch Office is prosecuting this case.
Alexander Nihar Biswas, 42, of Loma Linda, has been charged in a single-count indictment with distribution of fentanyl resulting in death. Biswas allegedly distributed the synthetic opioid, which is on the order of 50 times more powerful than heroin, to a victim in San Bernardino County. The use of the drug resulted in the victim’s death in January 2024. Biswas has been in federal custody since March 10. He pleaded not guilty to the charge and awaits an October 20 trial date in U.S. District Court in Riverside.
The San Bernardino County Sheriff’s Department and the DEA are investigated this matter. Assistant United States Attorney Erin C. Kiss of the Riverside Branch Office is prosecuting this case.
The Drug Enforcement Administration has been working in tandem with local law enforcement agencies in operations targeting the production and/or distribution of fentanyl. That effort, law enforcement officials announced on May 15, has resulted in the filing of 20 criminal cases in which the consumption of fentanyl and fentanyl-laced pills that directly resulted in the death of at least one victim. All of those cases pertain to deaths which have occurred since January 1, 2025.
Under the OD Justice program for the DEA’s Los Angeles Field Division, DEA agents have established collaborative relationships with local law enforcement agencies across the seven counties that make up the Central District of California.
The DEA and various local agencies have established what has been dubbed the OD Justice Task Force, a project designed to investigate fatal fentanyl poisonings and identify the individuals who provided the fentanyl that directly caused the deaths.