Post Fire - Release Tenant's Deposit?

[Eric A.]

The fire investigation has yet to be concluded, but so far it's pointing to an accidental fire and my tenant is already asking for his deposit back.

My feeling it's too early to release the deposit until I see a finalized report and the matter comes to a conclusion. Fact of the matter remains, it was his items that started the electrical fire. Could it be the home builder's liability? Hard to say at this point and it will be a long while until we get to that point.

Legally, what can I do and can't do here?

Shouldn't his renter's insurance provide him "assistance" if he needs the money to rent another home?

thanks.