Death row prisoner RONNIE LEE GARDNER, dob: Mon, 16 Jan 1961 (source: http://mylifeofcrime.wordpress.com/2007/01/23/utahs-death-row/) choses a firing squad for his execution in the USA state Utah*).
Mars (the symbol of arms, fire - and the words related to fire - and of shootings**) is ‘calling’ in his chart (no major aspects in sign or orb 5 degrees). It means that Martial issues are important in his life at any possible level. For the death threat: transit Pluto is about to retrograde to an opposition with progressed Mars, followed by a transit of Saturn.
**)Mars is also important in the charts of shootings that you can see here...
*) The USA is one of the few - if not the only one left of the - Western nations that still practises death penalty. Utah is the only state where this method of execution is ‘available’.