He sold drugs to a man who immediately overdosed and died. It will cost him his freedom.

A man who sold drugs the day after Christmas to another person, leading to the victim’s death, will head to prison for a decade.

Jamey Williams, 40, pleaded guilty to negligent homicide during a hearing in New York court this week. As a result of his plea, he will be sentenced to 10 years in prison. He is set to be officially sentenced next month, according to the Schenectady County District Attorney’s Office.

On Dec. 26, 2019, Justin Lowery was visiting friends and looking to buy cocaine, according to prosecutors.

His friends did not have any drugs and suggested contacting Williams. Williams came to the home with what was described as a brick of cocaine, according to prosecutors.

Witnesses said the substance looked different than typical powder cocaine, prosecutors noted.

Williams sold some of the drugs to Lowery, who immediately took some and started to show signs of an overdose, according to prosecutors. Around 11:45 p.m., first responders were dispatched to the scene. Within 30 minutes, Lowery was pronounced dead.

A crime lab determined the drugs were not cocaine but heroin and fentanyl.

Fentanyl is a powerful opioid that is often mixed with other drugs to enhance the effects, but a small dose can be deadly.

Williams faces the 10-year sentence because he has two previous felony convictions, according to the district attorney’s office. He was convicted of weapon possession in 2016 and sold drugs in 2015.