As best I can recall, beheading has never been a popular method of killing for Christians or Americans. There may be an exception for the occasional serial killer but as a general rule we shoot, stab, strangle or beat our victims to death.
Actually, I believe it was at various times in the distant past at least. For example, it was all the rage during French Revolution days. If I recall correctly, it was also so in Europe... but were talking reformation days and earlier.
Lol! You make us sound so morally superior when you talk about how we murder. Lol! Good laugh out of that one.