Catalina Mancera, the pregnant girlfriend of Marshawn Kneeland, was briefly handcuffed and placed in a squad car after arriving at the scene of the late Dallas Cowboys star's death, the Dallas Morning News reported on Tuesday, November 25. At around 11:40 p.m. on November 5, believed to be shortly before Kneeland died by suicide at age 24, police stopped a white Buick SUV registered to the defensive end. Mancera, 22, was the driver. She had raced to the scene after Kneeland had told her he intended to "end it all.