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Sons of Anarchy's Johnny Lewis has been buried at sea, ET has learned.

RELATED: Johnny Lewis Found Dead

According to the actor's death certificate, obtained by ET, Lewis was cremated and his ashes were scattered off the coast of San Diego County.

Investigators suspected the actor died on September 26 after climbing atop the home of his 81-year-old landlady, Catherine Davis, and either jumping or falling to the ground. Davis was found murdered inside the home. The following day, Los Angeles police said that Lewis is the only suspect in Davis' death.

According to the death certificate, the Lewis' immediate cause of death has been deferred.