© Getty Images

Tamera Mowry - Tamera Mowry-Housley and her husband, Adam Housley, entered into a panic after they couldn't find their niece several hours after the Thousand Oaks shooting had occurred.

© Getty Images

Tamera Mowry - Unfortunately, it was reported soon after that she was one of the 12 victims. 

© Getty Images

Jordin Sparks - Jordin Sparks was riding high in her career, and was pregnant with her first child.

© Getty Images

Jordin Sparks - The singer, however, tragically lost four loved ones in the same week.

© Getty Images

Jordin Sparks - She lost her cousin, her 16-year-old sister to anemia, and a couple of friends in a car accident.

© Getty Images

Rihanna - Rihanna is famous for spreading great tunes and good vibes wherever she goes.

© Getty Images

Rihanna - But she went through a really hard episode in her life.

© Getty Images

Rihanna - Rihanna lost her cousin, Tavon Kaiseen Alley, who was shot dead.

© Getty Images

Marie Osmond - The singer was a big hit in the 70s and 80s, especially for her song 'Paper Roses.'

© Getty Images

Marie Osmond - But backstage, all was not well. Her son Michael committed suicide at the age of 19.

© BrunoPress

Marie Osmond - Michael jumped from a window on the eighth floor, leaving his family in complete shock.

© BrunoPress

Jennifer Hudson - Known for her many talents, Hudson won an Oscar and a Golden Globe for her stunning performance in 'Dreamgirls.'

© BrunoPress

Jennifer Hudson - But her life was also affected by a horrible tragedy when her brother and mother were killed at their home in Chicago. Her nephew was missing, but his body was found a few days later.

© Getty Images

Jennifer Hudson - Hudson received support and tributes from her fans on hearing the news of the murders.

© BrunoPress

Eric Clapton - The singer also had to deal with a tragic death in his family.

© Getty Images

Eric Clapton - His son, aged four, died after falling out of a hotel window.

© BrunoPress

Eric Clapton - His song 'Tears in Heaven' is about the terrible event.

© Getty Images

Nick Carter - He was one of the stars who became successful from the Backstreet Boys.

© Getty Images

Nick Carter - However, his road to fame was anything but a bed of roses.

© Getty Images

Nick Carter - He lost his sister in 2012 after she overdosed on prescribed drugs. 

© Getty Images

Vanessa Redgrave - The prestigious actress has won Golden Globes and Oscars in her time.

© Getty Images

Vanessa Redgrave - But Vanessa Redgrave has also had to deal with dark and difficult times in her life.

© Getty Images

Vanessa Redgrave - Her daughter, the actress Natasha Richardson, died in a skiing accident in Canada in 2009.

© Getty Images

Mike Tyson - The ex-boxer is widely considered one of the best in his sport's history.

© Getty Images

Mike Tyson - But his career has not been all victory and winning.

© Getty Images

Mike Tyson - Mike Tyson lost his four-year-old daughter after she got her neck caught in a treadmill cable.

© Getty Images

Sylvester Stallone - The actor is well known for starring in action movies.

© Getty Images

Sylvester Stallone - But Stallone has to deal with tragedies in real life too.

© Getty Images

Sylvester Stallone - His son died from a cardiac arrest at the age of 36.

© Reuters

John Travolta - John Travolta has not appeared in the media for his career successes alone.

© Getty Images

John Travolta - He tragically lost his 16-year-old son after he suffered a fit.

© BrunoPress

John Travolta - Travolta's son suffered from Kawasaki, a disease which affects the blood arteries.

© BrunoPress

Solidarity - To all those who have sadly lost loved ones, our love and solidarity.

© Shutterstock