Marvin Scott III died in Texas police custody. His family will protest until the officers involved are arrested. Texas Tribune Published: Updated: Tags: LaChay Batts leads a chant saying Marvin Scott III’s name at a March 26 demonstration outside of the Collin County Jail to demand justice for Scott, who died while in custody at the jail on March 14. Credit: Shelby Tauber for The Texas Tribune For the past four weeks, a group of up to 40 protesters has gathered outside the Collin County Jail nearly every night around 9 p.m. They hang signs, draw on the sidewalk with chalk and decorate the chain link fence, celebrating the life of Marvin Scott III, who died while in the custody of jail staff in March.