YouTube star left a trail of cryptic notes online before murdering his family and attempting a school shooting.Trey Eric Sesler was a 22-year-old "loner" in 2012, living with his parents in Waller, Texas and unable to find a stable job.He spent much of his time filming videos for his YouTube channel, in which he reviewed anime and video games.
He was prolific, uploading 323 clips over five years.As one of the site's first anime reviewers, Sesler (who went by Mr Anime and later LensCapProductions) built up a devoted following and his channel had achieved more than one million views overall.But as time went on, Sesler's content took on a darker tone.
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