Master P's younger brother, C-Murder, real name Corey Miller, will have to serve out the remainder of his life sentence in a Louisiana prison after the Supreme Court rejected his appeal.
Miller was convicted of second degree murder and sentenced in 2009 to life in prison for the 2002 murder of 16-year-old Steve Thomas, at a Harvey, Louisiana nightclub.
The jury came back with a 10-2 verdict in favor of conviction. Louisiana and Oregon are the only two states that allow for non-unanimous convictions for some crimes.
Miller's lawyers were hoping the high court would make a decision "on the constitutional law that requires federal juries to reach unanimous verdicts in criminal cases, but allows states to make different rules," but were unsuccessful.
According to the Associated Press, "the justices recently have rejected similar appeals asking them to treat state and federal trials equally. Decisions involving gun rights and other issues generally require states to extend the same constitutional rights as the federal government."