(at around 1h 23 mins) When the shootings occur in the woods at the funeral, a silenced rifle is used. However, the shootings occur close enough to the funeral that you can clearly hear the service, so the funeral attendees should be able to clearly hear even a silenced gunshot (silencers don't work like the movies depict, the shot is still identifiable as a shot, just not as loud: it's not a soft pop, especially not with a rifle).