The second Will most likely included a clause which expressly revoked all previous Wills, so the first Will was revoked. The fact that the second Will is destroyed and revoked, does not revive the first Will (see s22 WA 1837).
No, destroying the second will cannot revive the first, and its destruction will usually result in an intestacy. I say “usually” as if there is evidence that it was destroyed under a mistake, it could remain valid (although a court application might be required to prove it – the second will that is).
The client will either need to re-execute the first will, specifically revive it by a codicil, or make a new will in the same terms.
Paul Saunders FCIB TEP
Independent Trust Consultant
Providing support and advice to fellow professionals