Wayne, 38, was found last December with a loaded, gold-plated .45 caliber handgun in his baggage aboard a private plane that had landed at an executive airport near Miami.
Ghosn fled Japan to Lebanon, his childhood home, in December as he awaited trial on charges of underreporting earnings, breach of trust and misappropriation of company funds, all of which he denies.
Earlier Tokyo prosecutors filed two new charges of financial misconduct against Carlos Ghosn.
The growing case against the auto tycoon represents a stunning reversal of fortune for a man once revered in Japan and beyond for his ability to turn around automakers, including Nissan.
Arsalan Khawaja, who was released on bail in early December, re-arrested "after allegedly attempting to influence a witness" in the counter-terror investigation.
Tokyo District Court says Nissan Motor Co. executive Greg Kelly, who was detained and charged with underreporting the income of his boss, former Nissan chairman Carlos Ghosn, will be released on 70 million yen ($635,600) bail.
The gunman, released on bail on January 1, opened fire at two houses in the central city of Arak.
Rajab was granted bail in a pending trial relating to the spread of false information, with the case to resume on January 23. He is being kept in jail to be questioned in another cybercrime case on a similar charge.
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