20/20 PREVIEW: Police interview Karen Read, gather evidence at boyfriend's crime scene | PART 3
4th officer dies after North Carolina shooting
4th officer dies after North Carolina shooting
New York State DA allegedly refuses to stop for police officer
Testimony resumes in trial of woman accused of killing her police officer boyfriend
Urgent search for suspect in killing of New Mexico police officer on highway
Sister of slain Chicago police Officer Luis Huesca speaks out
New Jersey home explosion kills retired Newark police officer, another man injured
Police officer pulls unconscious driver from burning truck l GMA
New York State DA allegedly refuses to stop for police officer
