The victims of Ariel Castro - Michelle Knight, Gina DeJesus and Amanda Berry - have been made aware of his suicide, but will not be commenting, according to a CNN editor.
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The 100 leaders did not agree on concrete proposals, but the meeting has raised hopes for concrete international agreement next December.
The speech was OK, passionate at times and certainly well received, but did not display the passion of past speeches.
The brother-in-law of a British hostage being held by Islamic State militants in Syria, says he is scared by US airstrikes in the country.