Survey for the Americans:Do u believe Lee Harvey Oswald killed JFK?

I know this is SO old, but I study history, we've almost finished the topic of his ination, & it just fascinates me how an ination could be so dam complicated lol. I just wanna know what Americans still think today. I'm just asking this for my own curiosity, & if u don't really care, then don't bother answering lol