That wouldn't necessarily be true.There was a time (not all that long ago) when it was relatively easy to lose ones US citizenship.However,in the last 50 years or so the Federal courts have handed down a number of rulings which have resulted in it becoming very *difficult* to lose one's US citizenship.Unless he renounced his citizenship *before a US State Department official* that renunciation wouldn't be valid...wouldn't be recognized.Check the State Dept website for details.
He would have had to satisfy Indonesian law on renunciation. And considering that at 18 to 20 he was drugging, drinking and being mentored by an American hating commie, anything is possible.
the Federal courts have handed down a number of rulings which have resulted in it becoming very *difficult* to lose one's US citizenship.Unless he renounced his citizenship *before a US State Department official* that renunciation wouldn't be valid...wouldn't be recognized.An important case is Action and Deltamar v. Rich, 951 F.2d 504. There the court ruled that Marc Rich (yes that Marc Rich) retained his American citizenship despite specifically renouncing it in a Spanish naturalization oath.
The court ruled that Rich's subsequent actions, including using his US passport, showed that he had no intention of giving up his American citizenship.