Shocking facts have emerged about the death of the famous American actress Marilyn Monroe.

The book, which will be published on the 60th anniversary of Marilyn Monroe's death, claims that the famous actress was killed by Robert Kennedy, the brother of former US President John F. Kennedy.

Former police officer Mike Rossmiller claims he found the information in an investigation at the Los Angeles Police Archives. According to Rossmiller, actor Peter Lauford, who witnessed Marilyn's last moments, admitted 20 years later that the young actress was killed to protect the Kennedy dynasty.

Mike Rossmiller and Douglas Sompson's book "Disaster: Bobby Kennedy Killed Marilyn Monroe at Night" will be published in England on July 8.