Two Jerry Cans Washed Ashore, He Never Did

What We Know

Michael Rockefeller was 23, a year out of Harvard, and had come to the Asmat coast of Netherlands New Guinea to buy woodcarvings for a museum his father had founded in New York. On November 17, 1961, he and Dutch anthropologist René Wassing set out from the village of Agats by catamaran, two dugout canoes lashed together under an outboard motor, heading upriver. At dawn the next day, waves swamped and flipped the boat near the mouth of the Betsj River. Their two Asmat guides swam for shore and made it. Rockefeller and Wassing clung to the hull through a full day and night.

The next morning, with the current still pulling them out, Rockefeller told Wassing, “I think I can make it.” He lashed two empty gas cans and the boat’s own fuel tank into a float, took a compass and a knife, and started swimming, guessing the distance himself at somewhere between three and ten miles. Wassing watched him for about thirty minutes, until he’d shrunk to three dots on the water: two cans and a head. Then there was nothing left to watch.

A search plane found Wassing still riding the capsized hull the next day; a Dutch government boat picked him up roughly twenty-two miles offshore. Rockefeller’s father, then governor of New York, flew in on a chartered jet within hours of the news, along with Michael’s twin sister. Dutch Governor Pieter Platteel sent boats, planes, and police; some five thousand people combed the mangroves on foot; President Kennedy cabled an offer of Seventh Fleet aircraft. Within a week, a Dutch official said there was no longer any hope of finding him alive. The search ended after roughly two weeks. It turned up exactly one thing: a red gas can, on a beach near the Asmat village of Otsjanep. Nothing else, then or ever. A Westchester County judge declared Michael Rockefeller legally dead in 1964, of drowning. No body was ever recovered.

The Roadblock

The problem was never a shortage of people looking. The coast Rockefeller vanished into erases evidence faster than anyone can gather it: tidal mangrove swamp, crocodile-populated, currents strong enough to carry a man twenty-two miles offshore in one night. Whatever the sea or the mud doesn’t take within days, the next tide usually does. The search lasted two weeks; nothing has surfaced since.

What’s left is testimony, gathered mostly decades later, in a culture where telling a story to a foreign investigator and telling one to a neighbor follow different rules. Carl Hoffman, the journalist who has pursued this furthest, describes Asmat sources who will shape an account to satisfy whoever’s asking. One of his best leads, a former headman who could name alleged participants from Rockefeller’s own photographs, never went further than allowing that it was a story he’d heard, one he said he knew nothing else about.

The Dutch government had its own reason to favor the plainest explanation: an administration overseeing headhunting territory, three years after its own patrol had killed five Asmat men, was not eager to publicize a retaliatory killing of a prominent American. Between a coast that destroys evidence, witnesses with reason to tell outsiders what they want to hear, and an official record with its own incentive to look away, nobody has ever had a body, a confession, or an object that couldn’t be explained a second way.

Best Guesses

Drowned in the crossing

This is what the Dutch colonial government said within days, and what Rockefeller’s family has maintained since: he never reached land. The only object ever recovered from his float complicates that a little — a red gas can, found on a beach near Otsjanep, a place a current would carry a swimmer, not a corpse. But the arithmetic still favors drowning over anything more dramatic: Rockefeller guessed the swim himself at three to ten miles, through a crocodile-populated strait whose current carried Wassing’s drifting hull twenty-two miles offshore in a single night. Exhaustion, exposure, or an animal attack would explain the total absence of a body without anyone having done anything to him.

Died reaching the coast

A second reading agrees he made it across, then stops there: no one killed him, and no one found him either. Exposure and dehydration kill people who reach land in worse shape than a two-week search can rescue, especially across mangrove swamp with no fresh water and few paths in. Some period observers in the region treated a solitary, unwitnessed death on the mud as the plainest explanation, requiring no attacker and no cover story. What it can’t explain is the specific, detailed testimony that surfaced later describing an encounter — testimony this theory has to write off as invented.

Killed by an Otsjanep war party

Carl Hoffman built the fullest case for this, and it stays unproven in the sense that matters most: no one in any version has ever confessed on the record, and every layer is secondhand, collected by outsiders the Asmat had their own reasons to tell what they wanted to hear. Missionary Hubertus von Peij said four Otsjanep and Omadesep men described a killing to him within weeks, in 1961, with physical details, including Rockefeller’s underwear, that von Peij didn’t think they could have guessed. Decades later, living in Asmat villages, Hoffman found a former headman who could identify several of von Peij’s named men from Rockefeller’s own photographs. The motive traces to 1958, when a Dutch patrol killed five Otsjanep war leaders: Faratsjam, Osom, Akon, Samut, and Ipi, leaving their successors, under Asmat custom, obligated to answer for it.

Captured, then killed in custody

A minority reading of the same testimony holds the killing wasn’t immediate — that Rockefeller was taken alive and held before he died. Hoffman’s sources name one man, Dombai, remembered in some tellings as having argued against killing him outright, a detail a few retellings stretch into a period of captivity. It would explain why some accounts don’t agree on where or how he died, if the disagreement reflects different stages of one encounter rather than different events. Of the four readings, this one is built on the least: a single disputed detail, a reported objection, stretched into evidence of a delay nobody has actually described.

The Verdict

An object connected to Rockefeller with a documented, verifiable chain of custody, not a story about where it came from but a traceable path from his hands to whoever has it now, is the one thing nobody has ever produced. Sixty-five years of testimony have added detail without proof, because every account, however consistent with the last, is still one person relaying what someone else told them. A firsthand, on-the-record statement is the only thing that would move this past “more likely than not,” and getting one would mean asking Asmat communities to reopen a subject some consider settled or none of an outsider’s business, on their terms, not a researcher’s. Carl Hoffman spent years trying and got closer than anyone before him. He came home without a name that would hold up anywhere else. The gas can is still the only physical thing anyone has ever found.