From Vince McMahon Wikipedia:
Numerous incidents (2007–2009)
On June 11, 2007, WWE aired a segment at the end of Raw that featured McMahon entering a limousine moments before it exploded. The show went off-air shortly after, and WWE.com reported the angle within minutes as though it were a legitimate occurrence, proclaiming that McMahon was "presumed dead".[69] Although this was the fate of the fictional "Mr. McMahon" character, no harm came to the actual person, the "presumed death" of McMahon was part of a storyline.[70] WWE later acknowledged to CNBC that he was not truly dead.[71]
The June 25, 2007 edition of Raw was scheduled to be a three-hour memorial to "Mr. McMahon". However, due to the actual death of Chris Benoit, the show opened with McMahon standing in an empty arena, acknowledging that his reported death was only of his character as part of a storyline.[72] This was followed by a tribute to Benoit that filled the three-hour timeslot