Janice, yes, Edwards had dual citizenship. Edward's 1st wife was UK citizen and they took up residences in Ontario and British Columbia, Edwards moved to California in 1980's. His wife took the kids and went back to Canada, waiting for him to finish up things and for JE to get settled and work.
1st wife received a letter, not to come back to United States because he found someone else. That's all it said. In 1987 JE applied for US Citizenship, with his new wife, Debra Compton Edwards, as his sponsor, in Huntington Beach, Cal. He immediately applied for work. In 1992 he received his certificate of US Citizenship.
Debra Compton ended up on federal probation for extortion, JE dumped her immediately after meeting his "soulmate" Diana. Who had recently become a widow and scammer. JE married Diana before he was divorced from Debra and had to remarry her after divorce was final. Jeff Turino was JE's best man. Helen, Urbie etc were guests