It looks like the crash of a Malaysia Airlines jet in Eastern Ukraine was no “accident,” Vice President Joe Biden said — rather, it was apparently “blown out of the sky.” Source

Witnesses described a chaotic and frightening scene following reports of an active shooter at a grocery store in Boulder, Colorado. CBS Denver’s Conor McCue has more. Source

The actor joins the “CBS This Morning” co-hosts to share details of his new movie and what advice Judd Apatow gave him early on in his career. Source

Experienced hiker, Gregory Hein, spent 6 days stranded on a mountain in the Sierras. He was badly injured and managed to flag down a helicopter that was searching for him. KGPE’s Pat Leong reports. Source

Zach Braff co-wrote, directed and starred in the new drama “Wish I Was Here.” Braff and his co-stars Kate Hudson, Mandy Patinkin and Josh Gad sat down with CBS News’ Ken Lombardi to discuss their new film. Source

The pop star, who was arrested for driving under the influence in a Lamborghini drag race, is waiting to hear whether he will go to trial. Also, Los Angeles becomes a bloodbath in “The Purge: Anarchy.” Suzanne Marquez has today’s Eye on Entertainment. Source

A new study provides important information for breast cancer patients considering a mastectomy for the healthy breast. Also, many doctors are incorrectly prescribing antibiotics to treat the flu. Don Champion has some of the day’s top health stories. Source

Researchers at Cedars-Sinai Heart Institute have developed a minimally invasive gene transplant procedure that changes heart muscle cells into cells that act like a pacemaker to keep the heart beating properly. Scientists say the procedure, currently being tested on animals, could be ready for clinical studies on people in about three years. CBS News’ Bigad Shaban reports. Source

A series of safety lapses involving anthrax and other potentially deadly pathogens was the subject of a House Oversight and Investigations subcommittee hearing Wednesday. Under criticism from both parties, CDC Director Dr. Thomas Frieden promised a major safety overhaul. Source

Daniel Silva joins the “CBS This Morning” co-hosts to talk about his new novel, “The Heist,” in which character Gabriel Allon travels inside the secret world of stolen art. Source