A federal judge in Midland on Wednesday sentenced 42-year-old Francisco Sauseda and 40-year-old Armando Sauseda Sr.
A jury in September convicted the pair of murder to further drug trafficking and conspiracy to possess with intent to distribute cocaine and marijuana.
Prosecutors say an SUV in an alley in Odessa was ambushed on June 1, 2009.
Jose "Chico" Gardea was killed instantly. Investigators say Steven Soto was executed, by Sauseda Sr., with two shots to the head while crouched on the floorboard.
No information was immediately available on whether the Sausedas are related.