April 15, 2013 7:24 pm Obama: “We Will Get to the Bottom of This” President Obama vows to bring those behind the Boston Marathon attacks to justice. The blasts left two dead and dozens injured at Boston Marathon finish line. US & World Videos 5:49 Kelly Clarkson hilariously attempts handmade pasta with chef Evan Funke 1:59 Ellen DeGeneres jokes about being ‘kicked out of show business' 2:03 Does Shakira still believe in love following Gerard Piqué split? 1:36 O.J. Simpson's cause of death revealed 0:59 Paramedic involved in Elijah McClain's death sentenced to 4 years of probation