Two 14-year-olds have been arrested in connection with his death.
Graves in West Norwood Cemetery have been heavily neglected and vandalised.
Rescuers said it was too dehydrated and starved to save.
The station has been evacuated.
Their Givealittle page has already raised over NZ$507,294.
"It could collapse at any second".
Thousands of activists are expected to take part.
The men have been ridiculed on social media.
Police appeared to be blindsided by the scale of the protest.