Did Mr. Robinson's trial counsel's performance in preparing defense witnesses meet the standards of effective assistance of counsel, as required by the Sixth Amendment?

QUESTIONS PRESENTED 1. Did Mr. Robinson's trial counsel's performance in preparing defense witnesses meet the standards of effective assistance of counsel, as required by the Sixth Amendment? 2. Did the judge's participation in investigating a potential alibi witness constitute an unconstitutional usurpation of the jury's fact-finding role, violating Mr. Robinson's Fourteenth Amendment right to due process? 3. Were there sufficient legal grounds for Mr. Robinson's trial counsel to request jury instructions on alibi and lesser-included offenses, and did the failure to do so deprive Mr. Robinson ofa =~ potentially viable defense strategy? -ii