The Dead Traveler is a Bosmer rogue who was delivering a Love Letter, apparently from somebody in Highcross to someone in Ebrocca. Unfortunately, he fell foul of Ebrocca's formidable collection of traps and guardians.
He always carries the letter, a few coins, and a leveled, one-handed weapon, and has a chance of having other equipment too. Half the time he will have a random amulet or necklace, and there's one chance in four of having each of a leveled pair of boots, greaves, ring and gem. 10% of the time he will also have a silver nugget.