Does the exclusion of statements by a co-perpetrator that he was solely responsible for the charged murder and the defendant was innocent violate the defendant's federal constitutional right to present a defense at trial?

QUESTION PRESENTED Does the exclusion of statements by a co-perpetrator that he was solely responsible for the charged murder and the defendant was innocent, including the statement in open court that “I’m guilty of the murder and [defendant] is not,” violate the defendant’s federal constitutional right to present a defense at trial? i PARTIES AND LIST OF PRIOR PROCEEDINGS The parties to this proceeding are Petitioner Robert Ibarra and Respondent W.L. Montgomery, Warden. The California Attorney General represents Respondent. On July 1, 2011, Ibarra was convicted by jury of first degree murder in People v. Ibarra, Santa Barbara County Superior Court case no. 1200303, Judge Brian E. Hill, presiding. Petitioner's