Presiding Judge Richard Lussick says the crimes Charles Taylor was convicted of were of the "utmost gravity in terms of scale and brutality". He said Taylor planned "some of the most heinous crimes recorded in human history"
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The singer had been tweeting in support of migrants when she was bombarded with abusive messages.
Ministers are reportedly considering plans in a bid to lower inward migration.
In a tweet on Saturday, the US president didn't give a reason for his absence but said he wished"everyone well and have a great evening".