Interrogating a dead person

[Melnir]

Hi there! During our last session we've come across a little dilemma: we need to interrogate a dead NPC we just fought, but his body exploded as part of their death (we tried to prevent it, but they were crazy cultist with kamikaze abilities). We can access any 3.5 or 3.p material freely and after thinking about it a lot we could not come up with a solution.
1. We can know the name with blood biography and then call spirit, but they can avoid answering
2. If we can fix the body we can speak with dead, but I'm not sure there's something that helps us here
3. Any creative idea is fine, we have a last resort possibility of going planar binding, but we're not 100% sure it's going to work so we're looking for more options

Thanks!

[Inevitability]

Can't Make Whole put the corpse back together if you manage to get all bits within range?

[Bullet06320]

https://www.d20srd.org/srd/spells/trueResurrection.htm

True Resurrection
This spell can even bring back creatures whose bodies have been destroyed



turn whats left of him into an intelligent undead of some kind

[Melnir]

https://www.d20srd.org/srd/spells/trueResurrection.htm

True Resurrection
This spell can even bring back creatures whose bodies have been destroyed



turn whats left of him into an intelligent undead of some kind

Except he needs to be willing and he's an enemy.

[Bullet06320]

just because he's an enemy doesn't mean he's not willing to come back