  Several classes of near-MDS codes of ${\rm PG}(3,q)$ are described. They are
obtained either by considering the intersection of an elliptic quadric ovoid
and a Suzuki-Tits ovoid of a symplectic polar space ${\cal W}(3, q)$ or
starting from the $q+1$ points of a twisted cubic of ${\rm PG}(3, q)$. As a
by-product two classes of complete caps of ${\rm PG}(4,q)$ of size $2q^2-q \pm
\sqrt{2q} + 2$ are exhibited.
