Re: Other conciderations . . .
<The only photo I've seen of a successful Palestinian suicide bomber consisted of a disembodied head sitting upright on the sidewalk. It was not easy to make out his expression, but I'm pretty sure it wasn't euphoric.
I recall the photo, but there are other factors involved than merely dying. Effects of blast, tension, and impact need to be taken into account.
Can't tell much from some people's expressions anyway. Those who believe themselves to be oppressed and/or violated often show a lack of expression, sometimes extending to a complete clouding of body language of any kind.
Dan