A. Yes, the lawyer is in an ethical bind. The difficulty results from the tension between the lawyer's need to vigorously defend their client and the possible harm that could happen if the client is freed and commits more crimes. On the one hand, the lawyer has a responsibility to fight for the interests of their client, which includes obtaining the best result for the client, such as a plea bargain. The lawyer, on the other hand, is conscious of the fact that their client poses a significant risk to society, and by getting a lighter sentence or parole eligibility, they might be increasing that risk. For the lawyer, this raises moral and ethical issues.
B. The Canons of the Legal Profession and legal ethics state that the client is the attorney's first responsibility. This obligation include providing knowledgeable and enthusiastic representation while protecting the client's privacy. There are restrictions on this duty, though. If the lawyer thinks that their client has plans to commit a crime in the future, they may be required to take the necessary precautions to stop it, which may include providing information to the police. Depending on the jurisdiction and appropriate codes of professional conduct, particular ethical requirements may change. If a lawyer cannot balance their ethical commitments with the interests of their client, they may occasionally be required to end the engagement. In order to negotiate this complex scenario, the attorney should ultimately speak with their local bar organization and abide by the ethical rules and legislation that are relevant in their area.