1, the victim's family can make any request, including opinions on the criminal suspect's sentencing, but whether it is adopted or not depends on the judge's ruling.
If you want to severely punish the suspect, you'd better hire a lawyer.
3. Lawyers can play many roles. For example, a lawyer can translate your opinion into professional legal language, so that the judge can accurately understand your meaning and make a judgment that meets your requirements as much as possible; At the same time, lawyers often have various relationships with judicial organs, so they can quickly obtain all kinds of information about cases and supervise the work of judicial organs.
4. What kind of example do you want?
Judging from the case you have described so far, the criminal suspect's crime is very serious. I think whether you can be sentenced to death depends on whether you accept civil compensation; If you don't accept the compensation, then he is basically dead.