A jury found /*Joshua Packer*/, 21, guilty of a felony and two misdemeanors in connection with a hit-and-run crash in December 2009, seven months after the murders.
Parker reportedly crashed into a parked car and prevented the victim from calling police.
He is facing trial for the killing of Brock Husted, his wife Davina, and their unborn child in their Faria Beach home.
He could get the death penalty if he's convicted in that case.
