 Brewer denied ever committing any crime of violence, and testified that he knew nothing about either of the robberies, and by extension, Tewksbury's murder.Almost immediately upon commencement of cross-examination, Brewer refused to answer the prosecutor's questions.Brewer was instructed by the trial judge to answer the inquiries, but after denying ever being near the murder site the night of the killing, Brewer again refused to be cross-examined.