fifth try:

Introduce a limited perspective: A spectator,
limited to his/her own point of view.

describe, depict what the spectator might
see/feel about what he/she sees.
Let the spectator be the only source of
truth and his/her reactions 'comment'
the situation that lays in front of him/her.

Point is, since the spectators knowledge
is that narrow and limited regarding the
entire spectacle, that it doesn't matter
if the perpetrator is a serial killer, or the
husband beating up his wife.

Actions by the bad actor do not need to
by justified at that point.