This is the first picture of American tourist John Allen Chau who was killed by an uncontacted tribe as soon as he landed on a remote island.
The 27-year-old travelled to North Sentinel Island on November 16, even though tourists are banned from the island.
He bribed fishermen to ferry him there but as soon as he reached the beach, the tribe shot at him with bows and arrows before dragging him onto the sand.
North Sentinel Island is one of the islands in India's remote Andaman and Nicobar chain.
His Instagram and Facebook profiles show pictures of him travelling to far-flung places across the globe.
In his last post on November 2, he shared pictures of the jungle and one of a leech between his toes and wrote: "Adventure awaits. So do leeches."
The Sentinelese tribe are hunter-gatherers who are completely isolated from the outside world.
The International Christian Concern said Chau was a Christian missionary who wanted to make contact with the tribe.
William Stark, ICC's regional manager, paid tribute to Chau and condemned his killing.
He said: "We here at International Christian Concern are extremely concerned by the reports of an American missionary being murdered in India's Andaman and Nicobar Islands.
"Our thoughts and prayers go out to both John's family and friends.
"A full investigation must be launched in this this murder and those responsible must be brought to justice.
"India must take steps to counter the growing wave of intolerance and violence."
Jatin Narwal, Superintendent of Police at Port Blair, told TNM that John was last seen alive on November 16.
He added: "He lived in Alabama, US. He is some kind of paramedic. He was on a misplaced adventure in prohibited area to meet uncontacted persons.
"People thought he is a missionary because he had mentioned his position on god and that he was a believer on social media or somewhere online.
"But in a strict sense, he was not a missionary. He was an adventurer. His intention was to meet the aborigines."
A source told AFP: "He tried to reach the Sentinel island on November 14 but could not make it. Two days later he went well prepared. He left the dinghy midway and took a canoe all by himself to the island.
"He was attacked by arrows but he continued walking. The fishermen saw the tribals tying a rope around his neck and dragging his body.
“They were scared and fled but returned next morning to find his body on the sea shore.”
When they got back to Port Blair, they told a local preacher, who was a friend of Chau's, what had happened.
"A murder case has been registered," one of the officials told Reuters.
Deepak Yadav, a police official in the island chain in the Bay of Bengal, said police have launched an investigation.
"We are aware of reports concerning a U.S. citizen in the Andaman and Nicobar Islands," a spokeswoman for the United States consulate in India's southern city of Chennai said in an email.
"When a U.S. citizen is missing, we work closely with local authorities as they carry out their search efforts," she added, but declined to provide further details over privacy concerns.
One of the police sources said Chau, who had made previous visits to the islands, had a strong desire to meet the Sentinelese.
He reportedly made a failed attempt to get to the island on November 14.
Chau hired a fishing dinghy and, aided by the fishermen, reached the vicinity of the island on November 16, before transferring to a canoe, the official said.
His body, spotted the following day by the fishermen on their return, has not yet been retrieved, the official added.
The fishermen who took him to the island have been arrested.