Superior Court Judge F. Gates Peed rejected claims by defense attorneys for Craig Heidt that authorities ignored a shotgun that may have provided evidence pointing to another killer.
The Savannah Morning News reports the judge ruled Thursday that defense attorneys failed to show that prosecutors "willfully or inadvertently" hid evidence. The gun belonged to Heidt's slain brother, and prosecutors say it had been ruled out as a possible murder weapon.
Heidt was sentenced to life in prison in 2010 after being convicted of killing his father, real estate developer Philip Heidt, and brother, Carey Heidt. Prosecutors say they were killed after learning Craig Heidt was sleeping with his brother's wife.