On the morning of July 31, 1975, James Riddle Hoffa, one of
the most influential American labor leaders of the 20th century,
was officially reported missing after he failed to return home
the previous night.

On July 17, 1944, the Port Chicago Naval Magazine near San
Francisco experienced a catastrophic explosion when two
ammunition ships, the SS E.A. Bryan and the SS Quinault
Victory, detonated while loading munitions for Pacific troops.

Celebrated actress Jayne Mansfield was killed instantly on June
29, 1967, when the car in which she is riding struck the rear of a
trailer truck on U.S. Route 90 east of New Orleans, Louisiana.

Mansfield had been on her way to New Orleans from Biloxi,
Mississippi, where she had been performing at a local nightclub;
she had a television appearance scheduled the following day.

On June 25, 2009, Michael Jackson, one of the most commercially successful entertainers in history, died at the age of 50 at his
home in Los Angeles, California, after suffering from cardiac
arrest caused by a fatal combination of drugs given to him by
his personal doctor Conrad Murry (below).

Conrad Murray

On June 24, 1997, U.S. Air Force officials released a 231-page
report dismissing long-standing claims of an alien spacecraft
crash in Roswell, New Mexico, almost exactly 50 years earlier.

Public interest in Unidentified Flying Objects, or UFOs, began
to flourish in the 1940s, when developments in space travel
and the dawn of the atomic age caused many Americans to
turn their attention to the skies.

       
He turned the material over to the sheriff, who passed it on to
authorities at the nearby Air Force base. On July 8, Air Force
officials announced they had recovered the wreckage of a
“flying disk.” A local newspaper put the story on its front
page, launching Roswell into the spotlight of the public’s
UFO fascination.