According to American Rifleman:

Romanian national shooting team members, including 1988 free
pistol gold medalist Sorin Babii, were cited for genuine
acts of heroism by the Romanian news agency. Although
reports were rather sketchy, it would seem the marksmen
applied their skills to wipe out a group of terrorists that
presumably were loyal to deposed dictator Nicolae Ceausescu.

To me, this would seem to make the marksmen professionals rather than
amateurs and thus disqualifies them from future Olympic competition.