According to a report from the Global Associated News Joe Montana died in a car accident. The reports reads,

"Pro football player Joe Montana is confirmed to have died in a single vehicle car accident. One other male passenger in the 2012 BMW driven by Joe Montana has been transported to a local California hospital and is reported to be in serious condition. A spokesperson for the California highway safety authority indicated that wet road conditions are the likely cause of the accident. Drugs and alcohol do not appear to have played any part in this accident. Team spokespersons could not be reached for comment at this time.

With all the details it would be easy to believe the story to be true. However always look at the bottom line. In small print at the bottom of the page it reads,

THIS STORY IS 100% FAKE! this is an entertainment website, and this is a totally fake article based on zero truth and is a complete work of fiction for entertainment purposes! this story was dynamically generated using a generic 'template' and is not factual. Any reference to specific individuals has been 100% fabricated by web site visitors who have created fake stories by entering a name into a blank 'non-specific' template for the purpose of entertainment.

So Joe Cool is alive and well and just the latest to suffer an internet hoax.