A will or testament, other than a will executed in the manner provided by section 18-107 , is void unless it is:
(1) in writing and signed by the testator, or by another person in his presence and by his express direction; and
(2) attested and subscribed in the presence of the testator, by at least two credible witnesses.
1981 Ed., § 18-103.
1973 Ed., § 18-103.