Even if it were twice as long, it does not justify an extra-judicial killing.
I don’t buy so much time needed for investigations, either. Anyone who can’t interview the police involved and review any video footage and figure out the facts in short order is part of the problem.
Investigators and officials should know by now that this is the year 2015 and news is on a 24/7 cycle- you have at *MOST* 24 hours to determine and publicize the facts.