A man who authorities say was connected to two deadly overdoses was sentenced to prison on Monday.

Donnell Lewis was sentenced to four years in prison after pleading guilty to the criminal sale of a controlled substance.

Police have said in the past that the investigation into two fatal overdoses and one non-fatal overdose led to the identification of Donnell Lewis.

Jeanine Pace said her son, Alex, died as a result of taking cocaine laced with fentanyl.

She attended Lewis’s sentencing.

He was not charged directly in Alex’s death but did admit to selling drugs.

“This man, even though he's going to jail, his family can come and visit him. I have to go down the road to the cemetery to see a slab of stone sticking out of the ground with my son's name on it," said Pace.

Lewis’s attorney and loved ones declined to comment following his sentencing.

Pace’s best friend, Paul Brajczewski, told News 12 that Pace had been working very hard to turn his life around. He said he knows that “if there was not fentanyl in that batch that he got that he would still be here with us today.”

In addition to four years behind bars, Lewis was sentenced to two years post release supervision.