“The car guard was lying on the grass and was face-down.
“We checked his pulse, but unfortunately he had none.
“We covered him up and called an ambulance, but he had died,” Tappan said.
He would not speculate on the cause of death.
Videos circulated on social media showed youngsters chanting and screaming at the Caltex garage while others walked and ran along the beachfront.
“We had heard rumours that such a party was being planned by youngsters, but it’s difficult to put in measures for such things when you don't know when or where they would happen,” he said.
“It was only when we noticed an unusually large number of youngsters along the beachfront in Summerstrand and Humewood that we figured what it was.”
He said the neighbourhood watch had roped in the police as the situation quickly escalated.
“It was a disturbing sight.
“Many of them were heavily drunk and about 15 had passed out along the pavements, with some being carried by their friends.”
Ward 2 councillor Renaldo Gouws said he had received numerous complaints and videos about the incident.
“I find it incomprehensible how the police or metro police were not aware that this event was taking place.
“It was a planned event and the fact that thousands of students were able to go on until the early hours of the morning breaking bottles, urinating and drinking is incomprehensible,” Gouws said.
Police spokesperson Sandra Janse Van Rensburg said a report would be released later.