Law enforcement sources tell us the singer hanged himself at a private residence in Palos Verdes Estates in L.A. County. His body was discovered Thursday just before 9 AM.

Chester was married with 6 children from 2 wives.

The singer struggled with drugs and alcohol for years. He had said in the past he had considered committing suicide because he had been abused as a child by an older male.

Chester was very close with Chris Cornell, who himself committed suicide by hanging in May. Today would have been Cornell's 53rd birthday. Chester wrote an open letter to Chris on the day of Chris' suicide.

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Cornell's wife, Vicky, tweeted out a message following the news of Chester's death, saying:

"Just when I thought my heart couldn't break any more ! I love you T."

The band has had a string of hits over the years, including "Faint," "In the End" and "Crawling." Linkin Park crossed music genres, collaborating with Jay-Z.

The band's album, "Meteora," was one of the biggest alternative albums in music history.

Law enforcement sources tell TMZ Bennington was home alone at the time of the suicide. We're told his family was out of town and he was found upstairs by an employee.

Bennington was 41 years old.

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The Metal Temple staff would like to offer their sincere sympathies to the family, close entourage and fans of Mr. Bennington.

May he rest in peace now!