Miami contractor Sergio Pino allegedly tried to have his wife killed, then committed suicide

On June 23, a young woman from Florida called 911 in a panic and said someone had just pointed a gun at her and her mother.

She told the operator that her mother, Tatiana Pino, had just pulled into the driveway of Tatiana's home in Pinecrest, Florida, when the man allegedly pointed a gun at her, according to a transcript of the 911 call obtained by NBC 6.

Tatiana escaped by driving her car into the backyard and honking to get her daughter's attention. Miami-Herald reported, citing FBI charging documents. The man then allegedly pointed a gun at the daughter as she came out but did not fire, and the harrowing incident ended without anyone being injured.

It wasn't the first time Tatiana was the victim of a murder attempt, federal authorities say. The estranged wife of Miami real estate mogul Sergio Pino was allegedly the target of repeated stalking and poisoning attempts by several suspects who federal authorities say were hired by Sergio to kill her, according to charges against the suspects reviewed by PEOPLE.

Sergio is not mentioned by name in the indictment, which identifies him only as “Co-Conspirator 1.” Miami-Herald, NBC 6 and the Tampa Bay Timesciting authorities, identified him as the man in the indictment who allegedly planned the murder of his wife.

Less than a month after the June 23 incident, Sergio was found dead in his home after committing suicide, the FBI said in a statement at the time. The statement confirmed that Sergio was under investigation for an alleged murder-for-hire plot.

Sergio and Tatiana were married for more than 30 years before she filed for divorce in April 2022 because she suspected Sergio had poisoned her, according to the Miami-Herald and the Tampa Bay Times.

In an indictment filed in July, several people are accused of organizing a “stalking and attempted murder campaign” against Tatiana that included arson, poisoning and a car crash, the U.S. Attorney's Office in Florida said in a statement.

Bayron Bennett, 33; Jerren Keith Howard, 38; Fausto Villar, 42; Avery Bivins, 36; Clementa Johnson, 47; Vernon Green, 53; Diori Barnard, 47; Michael Jose Dulfo, 42; and Edner Etienne, 27, were charged in connection with the case, the announcement said.

Bennett, Dulfo, Etienne and Howard were charged with stalking and arson, among other things. On one occasion in August 2023, the indictment said, Etienne drove a vehicle into Tatiana's car while she was sitting in it.

In a separate indictment reviewed by PEOPLE, Miami authorities allege that a “second gang” consisting of the remaining defendants also committed similar crimes. The suspects allegedly entered Tatiana's property “masked and without consent” and threatened others on her property by putting a gun to their heads, the indictment states.

The group was also allegedly instructed by Sergio to inject Tatiana “with a provided liquid substance to make her death look like a heart attack,” the indictment states.

Lawyer: South Florida contractor Sergio Pino dies during FBI investigation

Before his death, Sergio had denied his involvement in the alleged murder conspiracy.

The day before his suicide, his behavior indicated that he was trying to sort out his financial affairs, according to court documents obtained by the Miami Herald.

According to statements from his longtime girlfriend, his lawyer and his brother, Sergio paid his bills, re-delegated authority for several of his projects and changed the list of trustees for one of his trusts, the outlet reported.

In a will written on March 11, Sergio stated that he wanted his brother Carlos to manage his estate for the benefit of Sergio's four children, NBC 6 reported, citing a court hearing on August 9.

However, Tatiana, who was not mentioned in that will, convinced a judge to strip Carlos of control of the estate, according to the outlet.

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Bennett and Green have pleaded not guilty, according to Miami-HeraldIt was not immediately clear whether the other defendants have entered a confession, and PEOPLE could not reach their lawyers.

If you are experiencing domestic violence, call the National Domestic Violence Hotline at 1-800-799-7233 or visit thehotline.org. All calls are toll-free and confidential. The hotline is available 24 hours a day, 7 days a week in more than 170 languages.