Based on the information found, the tweet appears to be largely accurate:
"Henry Greenberg" is indeed an alias. His real name is Gennadiy Vasilievich Vostretsov, and he has used several other aliases in the past【16†source】.
He has a criminal history, having spent at least 10 years in Russian prisons and two years in U.S. federal detention for various crimes, including assault with a deadly weapon【16†source】.
He admitted in a 2015 court filing that he had been an FBI informant for the past 17 years and has worked undercover for the FBI in Iran, North Korea, and the United States【17†source】.
In May 2016, he contacted Trump advisors Michael Caputo and Roger Stone, offering negative information on Hillary Clinton. The Mueller team was reportedly aware of this approach【13†source】【14†source】.
The tweet's claims that Greenberg is a violent Russian who spent years in prison and worked for the FBI as an informant seem accurate based on these findings. However, the tweet does not provide the full context, such as the fact that Greenberg tried to sell negative information on Hillary Clinton to Trump's team. It's also important to note that my findings are based on the available sources and there may be more context or details not included here.
narhwal 💦💦💦💦💦💦
@narhwal5
GPT4 Says, this is true:
Based on the information found, the tweet appears to be largely accurate:
The tweet's claims that Greenberg is a violent Russian who spent years in prison and worked for the FBI as an informant seem accurate based on these findings. However, the tweet does not provide the full context, such as the fact that Greenberg tried to sell negative information on Hillary Clinton to Trump's team. It's also important to note that my findings are based on the available sources and there may be more context or details not included here.
https://twitter.com/narhwal5/status/1668679201350729728