Bureau of Prisons records show that Gentile was released on Wednesday, less than two weeks after he reported to prison.
Two lower courts have already ruled that Trump exceeded his authority by using emergency powers to impose tariffs.
Donald Trump's son-in-law who has acted as an outside adviser in diplomatic talks, is expected to attend.
Last Wednesday, seven of eight tower blocks at the Wang Fuk Court housing complex went up in flames.
Habba is the second Trump-appointed prosecutor to be disqualified in recent weeks
According to projections, more than two billion will be obese by 2030
Another 500 people remain missing, while thousands more have been injured.
On Friday, The Washington Post reported that a US strike on a boat on 2 September left two survivors.
Singapore has some of the world's harshest anti-drug laws, which it says are a necessary deterrent to drug crime.
