A few skeptics like ReligionFreeDeist on YT have questioned why Fact 1 is part of the 5 fact argument. They are missing the distinction between necessary and sufficient conditions. While not sufficient, Jesus death by crucifixion is a necessary precondition to the resurrection. It is only denied by a few fringe skeptics. This video unpacks the historical data from various sources, assessment by medical professionals and establishes that the most plausible hypothesis is that Jesus did indeed die an excruciating death by crucifixion.
Gary Habermas and Michael Licona, The Case For the Resurrection of Jesus. Grand Rapids MI: Kregel Publications, 2004.