...welp, I made a mistake that I thought I fixed but it seems I uploaded an earlier version.
Theo should say "why you didn't save him". You = Sofian, not he = Bolt.
It's Sofian who let the young Bolt die. It's clear by looking at the scene in the previous chapter...
and much more by reading what's coming next. Sorry.

Each day I understand less about time travel.
Thanks for the update!!!