(Capcom's primary storyline)
"The traveler" is a minor character in Resident Evil: Revelations 2.
He was an adventurer who, in October 2008, chartered a helicopter to Sejm Island to explore the island which, he noticed, did not appear on any maps. The locals at the fishing village were less than hospitable, considering him to be a spy, and locked him up in a shack.
Two months after his imprisonment, he noticed that the villagers disappeared and realized strange and mysterious creatures wandered around the premises. Being locked in the shack and having no one to look after him, he died from extreme thirst and starvation, as he desperately wrote in his final letter begging for water.
The traveler was never infected by the t-Phobos Virus, and so he was able to write down his experience and thoughts until his death.