I have yet to see evidence that Natalee went "wild in Aruba."
LOL - I guess it depends on the definition of "wild". A young attractive woman essentially alone (her friends and chaperones weren't there when needed), hanging out in hotels and booze-filled nightclubs, then going off alone with a guy or guys she knew at best for 2 days is kinda wild in my book. And no, not deserving of death and certainly not a high-school first. But maybe some parents will learn from Beth's experience and not think it's a good idea to leave their children in a foreign land to party. Poor judgment isn't a crime but it can make one more likely.
Not that it's evidence, but hanging out at Carlos and Charlie's points in that direction.