Utah Code Ann. § 76-1-201
(1) A person is subject to prosecution in this state for an offense which he commits, while either within or outside the state, by his own conduct or that of another for which he is legally accountable, if:
(3) In homicide offenses, the "result" is either the physical contact which causes death or the death itself.
(b) If jurisdiction is based on this presumption, this state retains jurisdiction unless the defendant proves by clear and convincing evidence that:
(5)
(d) If after the prosecution has met its burden of proof under Subsection (5)(c) the defendant claims that the state is deprived of jurisdiction or may not exercise jurisdiction, the burden is upon the defendant to prove by a preponderance of the evidence:
(6) Facts that deprive the state of jurisdiction or prohibit the state from exercising jurisdiction include the fact that the:
(7)