It's crazy that the law/courts are allowing Federal officers to have immunity from prosecution even when their actions are clearly not being done as part of their job. Obviously there shouldn't be ANY immunity from illegal acts, but I understand the reasoning for trying to protect officers from wrongful suits while doing their job. But this event was clearly not part of the officer's job and worse yet, a personal vendetta against the victim. Any other person (other than a Federal officer) would have had to go through the legal process in this situation. I hope justice is served. Regardless of the legal case, that officer should be fired and never work again in law enforcement. If a person is willing to kill someone in this situation, they should never be trusted to "serve and protect" the public.
Weird double image effect. My best guess is that is some kind of lens issue, maybe a dirty surface on the lens or on a sheet of glass in front of the lens causing a reflection that is slightly offset.