The girlfriend of mobster Peter Gotti (search), brother of the late mob boss John Gotti (search), was found dead of a possible suicide in a Long Island motel room, police said.

Marjorie Alexander, 43, had been reported missing on Tuesday and was discovered Wednesday afternoon at a Red Roof Inn, Nassau County police said. A preliminary investigation indicated that Alexander may have committed suicide, police said in a news release.

In the past week, the New York Daily News and the New York Post have reported that Alexander wrote numerous letters to a judge asking for leniency for Peter Gotti, who is awaiting sentencing for a racketeering conviction. He faces up to 15 years in prison.

"I did not fall in love with the wrong guy. I am proud of loving him," Alexander told the News.

"I took a chance. Life is about taking chances. Now I'm destroyed."

Gotti and six co-defendants were convicted last year of trying to extort up to $3 million from action-film star Steven Seagal (search).

"I can tell you Peter Gotti was very much in love with her," Gotti's lawyer, Gerald Shargel, told the News for its Thursday editions. "And this is devastation beyond words for him."

Gotti allegedly took charge of the Gambino crime family when his brother fell ill in federal prison.