Footage shows four people dressed in dark clothes on the roof of the building.
The child was swimming in a creek in Palumpa, also known by its Aboriginal name Nganmarriyanga.
Emergency crews treated a 22-year-old man, who was taken to a hospital in a serious but stable condition.
People who ate the gummies have suffered disturbing symptoms.
Johnny Konings was riding his favourite surf break near the Gold Coast when the tragic accident happened.
Police have since said the incident was triggered by reports of armed youths brawling inside the centre.
Joel Cauchi killed six people at Westfield Bondi Junction before Inspector Amy Scott arrived and shot him dead.
The council has suggested alternatives for those wanting to celebrate a special occasion.
The court heard Henson had been drinking for eight hours before taking off in the taxi.
