Thank you for your follow up.
While I cannot comment on your son's specific case, generally, it is never a good idea for someone who was involved in a crime to speak with the police, since police will say and do anything to extract incriminating statements and anything that someone who was involved in a crime say, will only be used against the person being questioned by the police and police does not decide which suspect becomes a witness and which is charged with the crime, as it is up to the prosecutor to make that determination and an experienced local criminal defense attorney can negotiate such deal with the prosecutor (if it is an option in the case), where a person who was involved in the crime, does not get charge or is charged with a less serious crime, in exchange for testimony against the main suspect.
Keep in mind, that a person has the right to remain silent and not to talk to the police, so police cannot force someone to speak to them and someone who is a potential suspect / person of interest should never speak to the law enforcement, without his/her local criminal defense attorney present.
I am not permitted to refer JustAnswer.com customers to specific attorneys or law firms, however, you can find an experienced local criminal defense attorney by using this reputable and reliable attorney information / referral websites:
I wish you the best of luck!