This file photo shows Jevan Sheppard during a court appearance on May 9, 2017.

This file photo shows Jevan Sheppard during a 2017 court appearance.

In March of 2017, 23-year-old Taylor May died of an overdose in Calvert City after taking the synthetic drug U4. Monday, one of the men accused of selling it to him pleaded guilty to federal charges. 

Federal prosecutors say 29-year-old Jevan Sheppard of Marshall County pleaded guilty to conspiracy to distribute U-47700 — more commonly known as U4 or pink — and to distributing, possessing with the intent to distribute and importing U4 from China. 

With his guilty plea, prosecutors say Sheppard admitted to conspiring with others to distribute the drug from Nov. 14, 2016, to March 22, 2017. 

Sheppard admitted to distributing U4 on or about March 13 and 14, 2017, according to a news release from the U.S. Attorney’s Office for the Western District of Kentucky.

The morning of March 14, 2017, 18-year-old Karson May and 23-year-old Taylor May were found unresponsive in a home in Calvert City. Karson survived the overdose, but Taylor died in the home. 

The U.S. Attorney's Office says Sheppard also admitted to possessing U4 with the intent to distribute on or about March 22, 2017, and to importing the drug into the United States from China between Nov. 14, 2016, and March 22, 2017. 

Sheppard will be sentenced on the federal charges at 10 a.m. on Sept. 23.

He also faces state charges out of Marshall County in connection to the overdoses. 

A man named Thomas Hardin was also arrested 2017 in connection to the case.