>> though dash cam videos are often used as evidence against suspects, this incident reveals the compassionate side of police. >> we're not only there to apprehend. we're there to protect and even if that's protecting the suspects, i mean, everybody needs protection, even if it's from themselves. coming up -- a distraught gunman who won't surrender. >> just put the gun down, ma'am! we'll talk about it! >> when "caught on camera: dash cam diaries" continues. when something works,