<p>A Morehouse College student was alive when his attackers stuffed him into the the trunk of his car, according to testimony from a Clayton County police officer Thursday morning.</p><p>"They could hear the victim yelling from inside the trunk," Detective Stefan Schindler said at a probable cause hearing.</p><p>Police have charged Breylon Wendell Garland, 20, Miles Jonathan Allen, 21, Keith Jerome Roberts Jr., 22, and Theodore Paul Holliman, 30, with the murder of Carnell James Walker Jr.</p><p>According to testimony, the four men broke into the Riverdale home of Walker, 23, on June 20 and waited overnight for him to return. The men tied Walker up with a computer cable, and over six hours, beat him with fists and a hammer, stabbed him with a pocketknife and stomped and disfigured him before locking him in the car trunk.</p><p>Walker's body was found July 8.</p><p>Police believe the killing was motivated by a $3,000 insurance settlement that Walker was expected to receive. Walker had not received the money yet, and the robbers only took $20, police said.</p><p>According to court papers, one of the suspects planned the attack because Walker "disrespected" him.</p>