Colin Kroll
Colin Kroll ( 1984 – December 16 , 2018 ) was an American entrepreneur who co-founded the video hosting service Vine and the trivia game app HQ Trivia . 
<triplet> Colin Kroll <subj> December 16, 2018 <obj> date of death <triplet> Vine <subj> Colin Kroll <obj> founded by <triplet> HQ Trivia <subj> Colin Kroll <obj> founded by