Complex sentence: Hans vehemently challenges the guide, asserting that such an atrocity never occurred during his time was warden and days later, because a tourist had filmed him and uploaded the clip to YouTube, he receives another package of memorabilia.
Split into simpler sentences: Hans vehemently challenges the guide, asserting that such an atrocity never occurred during his time as warden. Days later, because a tourist had filmed him and uploaded the clip to YouTube, he receives another package of memorabilia.