1: Santana recalled the moments when he recorded a roughly three-minute video of North Charleston Police officer Michael Slager shooting Walter Scott as Scott was running away Saturday . 2: Santana said when he first came on the scene while walking to his job he saw Slager on top of Scott , who was on the ground . 3: Witness who took video of shooting said when he arrived officer was on top of Walter Scott .
1: North Charleston Police officer Michael Slager 2: Slager 3: officer