King was found guilty of first degree murder and felony use of a firearm in the August 2007 shooting death of Ryan Matko. No emotion from King as the verdict was read allowed by the judge.
But there were tears and hugs among Matko's family and friends. One of King's close friends says the verdict surprised her.
Shocking but eye opening for Idamae Carter.
"There's a great lesson learned that two lives are ruined over something that was unnecessary," said Carter as she left the courthouse Wednesday.
Carter's friend, 18 year old King, stood quietly by his attorney when jurors returned with a guilty verdict. It only took the panel two hours to decide that it was King who shot and killed Matko August 22, 2007. Prosecutors say King and Matko were friends at one point and that King was Matko's drug supplier.
The morning of the murder, prosecutors told jurors king knew Matko wanted to buy drugs and would have nearly $500 in cash with him. The defense tried to convince jurors that another young man had the murder weapon more than a week before the homicide but the jury didn't buy it.
The prosecution had wanted to share with jurors that King was an admitted gang member but the judge wouldn't allow it.
Rose Matko left the courthouse in a hurry. Her daughter says she went home to rest. Rose's boyfriend Steve Mitchell says Rose got closure but she'll never forget.
"Thank God, I didn't think they would but the jury... we had a good jury... Chesterfield got a good jury and they made the right choice," said Mitchell.
The work is done for the six men and six women who made up the jury. The judge will sentence King because King was 16 at the time of the murder. Sentencing has been scheduled for November 23.