David Klein says he has finally found some relief after Tamitha Hicks Gilchrist plead guilty to second degree murder for the death of his son Taylor in April 2006.

"If you supply drugs to somebody and they die, you could be charge with second degree murder," Klein explained. "It's a law in North Carolina."

Klein said Taylor, 18, went to Gilchrist's house in Fuquay to get drugs. It's the next part of the story that he says continues to haunt him.

"Taylor became ill and sick and went into a coma. Instead of calling 911 or taking him somewhere they let him die," Klein said. "They then put him in a ditch in Fuquay."

At first, the Wake County Sheriff's Department called the death a drug overdose, blaming no one. But Klein didn't back down.

Klein hired a lawyer and private investigator, while also asking the District Attorney for help. This effort paid off when the DA took Gilchrist, 42, into custody in April 2008 - two years after Taylor's death.

Then came Gilchrist's guilty plea on May 4 of this year.

"We got her off the street for 10 years," Klein said. "I don't know if there's justice but she's off the streets."

He hopes his struggle to get a drug dealer behind bars saves the lives of other teens, and says parents need to take action.

"Do something now. If you have a child into drugs do it now!" Klein said. "Don't wait until tomorrow."

Klein says a load has been lifted, but the pain of his loss still remains stronger than ever.

There are other men involved with leaving Taylor's body in a ditch, and Klein says they may face criminal charges in the future as well.