This Week's WHO: Cory's Tragic Death

CORY MONTEITH: GONE TOO SOON
The Glee star's shock death in a Canadian hotel room leaves his girlfriend, Lea Michele, devastated and questions unanswered about whether fame and old
demons played a role in his death. Less than three months after completing treatment for substance abuse, the 31-year-old actor was found dead by hotel staff on July 13. As celebrity friends and fans pay tribute to the young star, WHO explores his troubled life and final days. Monteith and Michele "were very happy and very in love" when he died, says a source close to the actress, who had been holed up at the two-bedroom Hollywood bungalow the couple shared before joining Monteith's family to grieve. "Everyone is worried about her," adds another friend.

PHOTOS: Cory Monteith's Hollywood Life In Photos

KELLY OSBOURNE: "I'M GETTING MARRIED!"
Back on the island where they got engaged on New Year's Eve, Kelly Osbourne and Matthew Mosshart open up exclusively to WHO about love, their wedding plans and happy families.
The Fashion Police star met the vegan chef at Kate Moss's 2011 wedding, and the pair have been inseparable ever since. "I've never felt this close to another human being, ever," says Osbourne, showing off her diamond engagement ring, which the bride-to-be designed to look like an earring her father, Ozzy Osbourne, used to wear. "We're completely in love."

PLUS:

IT'S A CELEB WEDDING BOOM: See the photos of Halle Berry and Olivier Martinez's romantic nuptials in the French countryside, and talk-show host Jimmy Kimmel's star-studded Californian affair.

HOLLYWOOD STAR LEAH REMINI QUITS SCIENTOLOGY: She became a celebrity poster girl for the controversial church, but after clashing with the Scientology hierarchy, she's walking away after more than three decades.

PHOTOS: Surprising Star Scientologists!

RELATED: Leah Remini Issues Statement Following Scientology Exit