Final answer:
Michael Carneal used an undisclosed outlet to express his shame and remorse over his crime.
Step-by-step explanation:
Michael Carneal, the student who committed a crime, expressed the shame and remorse he felt through a specific outlet which is not mentioned in the provided information. However, people who feel shame and remorse often seek out different outlets to express their emotions. Some common outlets include engaging in therapy, writing a letter or journal, participating in support groups, or seeking forgiveness and redemption through religious or spiritual means.