No. According to the federal airspace rules, radio control model airplanes are limited to no more than 400' altitude.
Also, they cannot fly over buildings and must be kept at least 100' from people.
R/C aircraft must also be flown specifically by line of sight. They cannot be flown first-person video (FPV)
Naturally, a lot of drone owners disregard these rules and do whatever they darn well please.
I have no sympathy for these idiots. They got what they deserved. I hope the shotgun blast did significant damage to their drone. The only reason they were flying so low was to shoot video. (read: peeping tom)