On March 20, 2005, the quiet community of Van Buren, Missouri, was shaken by the targeted killing of 37-year-old Sergeant Carl Dewayne Graham Jr., a male officer with the Missouri State Highway Patrol. Having just completed his shift, Graham returned to his residence in rural Carter County, unaware that an assailant was lying in wait. As he stepped out of his patrol vehicle in his own driveway, he was ambushed with a barrage of gunfire from both a rifle and a shotgun. The attack was swift and fatal, leaving the twelve-year veteran of the force dead at the scene, where he was later discovered by a passing motorist who noticed his body near the patrol car.
Detectives immediately began searching for a motive and quickly zeroed in on Graham's professional activities. At the time of his death, the sergeant had been leading a relentless investigation into a fatal hit-and-run accident that had occurred months earlier in November 2004. The primary person of interest in that vehicular fatality was Lance Collin Shockley. Investigators theorized that Shockley, fearing the mounting evidence and the likelihood of serious charges resulting from Graham's work, orchestrated the assassination to stop the inquiry and escape justice for the previous crime.
Law enforcement officers arrested Lance Shockley on March 23, 2005, initially on charges connected to the hit-and-run incident. As the homicide investigation progressed, authorities secured enough evidence to implicate him directly in the ambush. On March 29, 2005, Shockley was formally charged with first-degree murder and armed criminal action. During his 2009 trial, prosecutors presented the case that Shockley had killed Graham to obstruct the ongoing investigation. The jury returned a guilty verdict for first-degree murder, but during the penalty phase, they were unable to reach a unanimous decision regarding his punishment.
Under Missouri state statutes, the authority to determine the sentence passed to the presiding judge after the jury deadlocked. Judge David Evans reviewed the case and subsequently sentenced Shockley to death, determining that the severity of murdering a police officer to hinder an investigation warranted capital punishment. After spending years on death row and exhausting numerous appeals through the state and federal court systems, Lance Shockley was executed by lethal injection on October 14, 2025, at the state prison in Bonne Terre, finally concluding the legal proceedings surrounding the death of Sergeant Graham.
