Samen Kondorura, 40, was crushed to death as the coffin containing his late mother's remains fell from a traditional funeral tower.
Cell phone footage captured the incident as pallbearers lost their footing while carrying the casket up a bamboo ladder.
The coffin fell more than 22 feet, trapping several people below, including Kondorura, who suffered severe head injuries.
He died on the way to the hospital in South Sulawesi island.
“As the mother’s coffin was being raised to the lakkian [a ceremonial tower], suddenly the ladder shifted and collapsed, and the coffin fell and hit the victim,” Julianto Sirait, the chief police commissioner, told AFP.
Sirait added that the accident occurred because the ladder was not properly reinforced.
He added that the family has declined to press charges.
Kondorura is now resting alongside his mother.