Supreme Court — Dismissal — No debatable constitutional question involved — Criminal law — First degree murder — Evidence — Letter of Director of Federal Bureau of Investigation — Stating fingerprints at scene of offense identical to fingerprints of accused — Admission of letter in evidence with claimed agreement of accused's counsel — Cross-examination by accused's counsel relative to such letter — Right to confront witnesses — Section 10, Article I, Constitution — Article VI, Amendments, U.S. Constitution — Instruction by court to jury at its request during deliberation — Given with consent of accused's counsel although accused not present — Instruction later repeated to jury in presence of accused — Right to defend in person — Section 10, Article I, Constitution.