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The investigation into who killed the Staten Island mother vacationing in Istanbul, Sarai Sierra, is focused on a homeless man who was seen in the seedy neighborhood of the city where her body was found, news reports said.

A glaring loophole may prevent several people who offered information to the Los Angeles Police Department, including a couple reportedly tied up by rogue ex-cop Christopher Dorner, from seeing any part of the $1 million reward offered by the Los Angeles Mayor Antonio Villaraigosa last week.

The day before Valentine's Day brought out a passionate outpouring of activism from noted personalities, including lawyer Robert F. Kennedy Jr. and civil rights leader Julian Bond, as well as actress Daryl Hannah, after tying themselves to the White House gate to protest the Keystone XL oil pipeline from Canada.