Is money acquired from assisting in the recovery of stolen property, which resulted in the loss of lives, considered permissible (halal) or impermissible (haram)?

Stolen money belongs to its owner and must be returned to him. It is not permissible for anyone to seize it or steal it from thef. Instead, the thief must be advised to return the money. If the thief does not return the money, and the questioner is able to take it and return it to its owner, then this is an obligation.

It is not permissible to recover stolen money except with the intention of returning it to its rightful owner. It is forbidden to take it for yourself or give it to anyone other than its owner. Whoever buys stolen goods, knowing them to be such, shares in the sin.