It's possible he got into a car with a drug dealer to make a quick buy, so no need for weather appropriate clothing. They got as far as where the dogs picked up his scent on Sunset/Bellagio and the deal went sour. MN may have jumped from the car and stumbled for several yards before the drug dealer(s) grabbed him/killed him and took him off in his car to dispose of him. Sounds awful but that would explain the "zig-zag" movements from the sidewalk to the street and back to the sidewalk again. The possibility is also good that he had an accident at the construction sight in a place that police dogs couldn't find. Even college age kids love to "explore". If he were on a winning "high" from the computer game, he may have been too restless to sleep and went out looking for just such an amusement in order to wind down/tire himself out. Touching on his lack of warm clothing/shoes again, he might've been one of those guys who never admit, even to themselves, that they get cold. I can't imagine he would've gone to a rave by himself; where is the fun in that? And at nearly 5:00 in the morning? Is there some way that ground penetrating equipment or other methods could be used to see if his remains are buried under DeNeve Hall or the other sites where construction was going on at the time? Whatever company worked on this project may have photographs or drawings of the construction from start to finish.