A Kingsport man was sentenced to more than seven years in prison after being convicted on federal drug and gun charges.

News 5 has learned 62-year-old Stephen Leon Williams was sentenced Wednesday in U.S. District Court in Greeneville.  He was convicted of participating in an Oxycodone conspiracy out of Kingsport and for selling a gun to an undercover agent. 

That all happened while he was on parole from a 1981 first degree murder conviction out of Hawkins County.

The investigation revealed Williams sold 60 pills to an undercover officer, and also sold a handgun and a clip with six rounds to another agent. 

Williams admitted that throughout the conspiracy he sold more than 2,250 pills.

We've learned Williams was given parole on his murder conviction after a short amount of time passed in his sentence. 

Once he completes his drug conspiracy sentence, Williams will also have to face revocation of his parole on his murder conviction.