The brothers suspected of the Boston Marathon bombings originally planned to carry out the attack on July 4 this year, a law enforcement official has said.
But the official claimed the Tsarnaev brothers decided to strike earlier because they completed building their bombs more quickly than expected.
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The four-time Olympic champion said on Twitter: "I am not afraid to tell my story anymore."
Social deprivation and suffering from prolonged health problems were the main factors inflating emergency department attendance.
The hills are likely to see the most snow, with blizzard conditions at times too.