Brea, who has appeared in Ugly Betty and Step Up 3D, was arrested on Tuesday (23Nov10) on charges of murder and criminal possession of a weapon after an alleged fight with his mum Yannick in her New York City apartment.
Cops responding to neighbours' alerts found the 55-year-old mum in the bathroom with cuts to her head. She was pronounced dead at the scene.
Police Commissioner Raymond Kelly tells the Associated Press, ""In a bedroom was her son... with a three-foot sword.""
Brea, who has no prior convictions, was taken to a nearby hospital for a psychiatric evaluation.
It is not known what caused the alleged domestic dispute but residents in the Brooklyn neighbourhood claim they heard the star repeatedly screaming, ""Repent, repent, sinner, sinner"" and ""You never accepted Jesus!""