Yapta co-founder Brett Allsop was killed Tuesday night, after running into a tree near Bellingham. According to the Bellingham Herald, Allsop--38--went off the road around 10:15 p.m. and died at the scene. Yapta, which tracks airfare and hotel prices, said on its blog that "Without Brett, there would have been no Yapta. He was a visionary and a great entrepreneur - and most importantly, a terrific guy."