Frank Sinatra Jr.'s Family Speaks Out About His Death

— -- Frank Sinatra Jr. died Wednesday at the age of 72.

Born Francis Wayne Sinatra, he was the son of the great Frank Sinatra and a famed singer in his own right. Sinatra died of cardiac arrest while on tour. His family released a statement to ABC News about his death.

"The Sinatra Family mourn the untimely passing of their son, brother, father, uncle, Frank Sinatra, Jr., of cardiac arrest while on tour in Daytona, Florida," the statement read.

Here is what Seth MacFarlane, Tommy Lasorda and others had to say about his passing.

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