Angry protesters took to the streets of Alahabad in northern Indian state of Uttar Pradesh, where two teenage girls were found hanged after being gang-raped.
Authorities in Uttar Pradesh, which has a long-standing reputation for lawlessness, are facing growing criticism.
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Satoshi Uematsu, 26, was sent to the Yokohama District Public Prosecutors Office in Kanagawa prefecture.
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Five women shared their views about whether Hillary Clinton's Democratic presidential nomination is a defining moment in US history.