Convicted Drug Trafficker Found Guilty Of Distributing Fentanyl That Resulted In The Deaths Of Two Hillsborough County Men

Tampa, Florida – Acting United States Attorney Sara C. Sweeney announces that a federal jury has found Marquis Lamar McCullough (39, Tampa) guilty of two counts of distribution of fentanyl and one count of possession with intent to distribute fentanyl. For both counts of distribution of fentanyl, the jury also found that the death of a person resulted from the use of the fentanyl that McCullough had distributed. McCullough, who was previously convicted of trafficking in cocaine, faces mandatory sentences of life imprisonment. 

According to testimony and evidence presented at trial, on April 22, 2021, deputies from the Hillsborough County Sheriff’s Office (HCSO) responded to the residence of K.K. to conduct a wellness check. They found K.K. dead when they entered his apartment, standing with his feet on the floor and his head and torso on top of the bathroom counter. Deputies found two baggies with small quantities of a substance, suspected to be heroin or fentanyl, in K.K.’s residence. Detectives reviewed K.K.’s cellphone and found communications with a woman who appeared to help K.K. purchase fentanyl the previous evening. The woman—who was a heroin user and not a dealer—was arrested on an unrelated charge and interviewed by detectives. She told them that K.K. could not get heroin from his usual source, so he asked her to buy heroin for him from her source, and she agreed to do it if she got to keep a bag for herself. The woman arranged a meeting with her supplier, “Slim,” and K.K. took her to meet Slim. With money provided by K.K., the woman bought several bags from Slim, provided most of them to K.K., and kept a couple of bags for herself.

On April 28, 2021, HCSO detectives conducted a controlled purchase during which detectives observed “Slim” deliver fentanyl and identified him as Marquis Lamar McCullough.

On May 6, 2021, the son of N.M. found his father dead, lying in his bed, and called 911 to report the death. HCSO deputies and detectives responded to the residence, and inside N.M.’s wallet they found a baggie with a small amount of a substance suspected to be heroin or fentanyl. While reviewing calls and texts on N.M.’s phone, a detective who had participated in the surveillance operation eight days earlier recognized that the last three calls placed by N.M. were to McCullough’s phone number, and the call and text history indicated that McCullough was N.M.’s supplier. Later that day, HCSO detectives planned for another purchase of heroin or fentanyl from McCullough, using N.M.’s cellphone to set up the meeting. When McCullough arrived at the meeting location, he tried to call N.M., but when his calls went unanswered, McCullough fled the area. An arrest team pursued his vehicle and took McCullough into custody.

The Drug Enforcement Administration laboratory determined that the substances found at the residences of K.K. and N.M., and the substances purchased from McCullough on April 28, 2021, all contained fentanyl. The Hillsborough County Medical Examiner’s Office investigated both deaths and determined that the use of fentanyl caused the deaths of K.K. and N.M. 

This case was investigated by the Federal Bureau of Investigation, the Drug Enforcement Administration, the Hillsborough County Sheriff’s Office, and the Hillsborough County Medical Examiner’s Office. It is being prosecuted by Assistant United States Attorneys Michael Sinacore and Ross Roberts.