William Caraballo, also known as "Wilo" and "Couzzo," has been sentenced to 12 years in federal prison for trafficking fentanyl. The sentencing was handed down by U.S. District Judge Robert N. Chatigny in Hartford. Vanessa Roberts Avery, the United States Attorney for the District of Connecticut, announced the sentence which includes 144 months of imprisonment followed by five years of supervised release.

The case against Caraballo arose from an investigation where law enforcement identified him as a supplier for Cruz J. Bonilla, who had sold heroin/fentanyl to an undercover officer between March and May 2020. Investigators tracked Caraballo's movements, noting a trip he made on June 6, 2020, from Connecticut to the Bronx and back. Upon his return, Connecticut State Police found approximately one kilogram of fentanyl in his possession during a traffic stop on I-95 North.

Caraballo has been held since his federal arrest on October 6, 2020. He entered a guilty plea on June 27, 2024, admitting to possession with intent to distribute over 400 grams of fentanyl.

His criminal record includes convictions for assault and drug-related offenses dating back to 2002 when he shot someone after a dispute about a football game. Other convictions include stabbing a relative in the chest with a pocketknife in 2013.

Bonilla also pleaded guilty on July 30, 2024, to charges related to drug distribution and violating conditions of supervised release from an earlier conviction. He remains detained awaiting sentencing.

The investigation involved the Drug Enforcement Administration (DEA), Connecticut State Police, and the Connecticut Statewide Narcotics Taskforce East. Assistant U.S. Attorneys Konstantin Lantsman and Natasha M. Freismuth prosecuted the case.