Angry activists flood Alhambra City Hall demanding an investigation after a police encounter with a woman who was following federal agents. Angie Vargas claims, after a now viral video, that police officers were working in cooperation with Border Patrol agents when they approached her car. Alhambra police say they were responding to reports of a driver running red lights and making illegal U-turns while following another vehicle. Eyewitness News is live with the fiery controversy engulfing city