Facebook refuses to explain why live torture video wasn't removed sooner

Company won't say why video showing a man bound, gagged and cut with a knife amid shouts of 'fuck Donald Trump' wasn't taken down for 30 minutes

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Facebook on Thursday refused to respond to mounting questions over its apparent failure to take down a live broadcast of the brutal attack of a young man with disabilities in Chicago.

Related: Four arrested over Facebook Live video of man tortured amid anti-Trump taunts