In July, 28 year-old Sandra Bland was driving to her new job in Waller County, TX when she was pulled over for switching lanes without a signal--a routine violation that usually ends with a ticket. But instead, officers slammed her head into the ground and arrested her.

Three days later, she died in police custody.

This is one of the most outrageous cases of police abuse we've seen yet. There is video showing the officer slamming Sandra to the ground as she pleads for them to stop. And the local sheriff, who claimed Sandra killed herself, was fired in a different city for multiple counts of racist and violent conduct. That's why we can't leave an investigation into Sandra's suspicious death in the hands of local officials. Together with our friends at ColorofChange, we're demanding the Department of Justice step in and investigate just what happened. Will you stand up for Sandra and sign our petition to Attorney General Loretta Lynch?