Just A Few Really, Really, Really, Really, Really, Really, Really, Really, Really Dark And Terrifying Things I Learned This Week

Karl Hopf was a German serial killer who used his medical knowledge to quietly poison the people closest to him.View Entire Post ›

buzzfeed.comJuly 6, 20261 Min Read

Just A Few Really, Really, Really, Really, Really, Really, Really, Really, Really Dark And Terrifying Things I Learned This Week — Image: buzzfeed.com

Karl Hopf was a German serial killer who used his medical knowledge to quietly poison the people closest to him.

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