From the story:
Sotelo was working toward a goal of hiking New Hampshire's 48 peaks above 4,000 feet before her 20th birthday, according to the Associated Press. She would have turned 20 on Wednesday, the day her body was found.
So, it sounds like she bagged 47 peaks before this one, no doubt without a problem, and underestimated the power of nature. Easy to do if you've done something a couple dozen times with no problems. Article said she got off the trail, also easy to do in snow and high winds.
I can't tell you how many times I've been in the mountains here, miles from the trailhead and much higher in elevation, and passed all manner of trail runners and peak baggers who couldn't survive a cold night with the gear they were carrying.
