Suspected terrorist arrested in Boston

Suspected terrorist Dzhokhar Tsarnayev, allegedly responsible for launching an attack on the Boston Marathon, was arrested last night in Watertown.

"The terror is over, the suspect has been arrested," the Boston police force reported on Twitter.

US President Barack Obama later addressed the nation and called for an investigation into the crime. "We must to find out why a young man, who was raised in our country, has turned to violence," President Obama said.