Grissom died a year before the Moon landing ... your tinfoil hat needs upgrading.
Before Apollo 1's planned launch on February 21, 1967, the Command Module interior caught fire and burned on January 27, 1967, during a pre-launch test on Launch Pad 34 at Cape Kennedy ... The Apollo spacecraft problems were corrected, with Apollo 7, commanded by Wally Schirra, launched on October 11, 1968, more than a year after the Apollo 1 accident - wiki
Where do you get this stuff, do you just make int up on the fly?
There is some amazing history behind this stuff—covered in this book.
https://www.amazon.com/One-Small-Step-Great-Dominate/dp/1905570120
Ask Gus Grissom’s wife and son. Don’t you know anything about the incident other than “official narrative”?