Murder has no statute of limitations, therefore charges can still be brought. Under most circumstances, the courts would certify the individual as an adult and the charges would be heard in criminal court, as any other murder.
The majority of cases in the US are heard by the various state courts.
marinette county in Wisconsin
Appealed
Municipal Court (similar to County Court in the US) hears the most cases in Canada.
Probably not. In most cases a "Class A Felony" would be something along the lines of 'assault with a deadly weapon' or 'attempted murder'.
Regardless of sex, almost anyone is subject to manipulation of one sort or another. Manuipulating someone in to committing murder would be an extreme case but is certainly not impossible. However, in most cases for a crime to be considered murder it would have to be understood by the actor that action was intended to cause wrongful death.
This is admittedly an educated guess and may be applicable only in the US: But I believe the answer would be Municipal Courts or County-level court systems probably hear the most cases due simply to the sheer number of misdemeanor and traffic cases that are heard each day.
Courts that have the authority to be the first courts in which most federal cases are heard are known as district courts. These are the trial courts of the federal judiciary system and are responsible for hearing both civil and criminal cases.
A first degree murder charge gets you life w/o parole in most cases.
Most criminal cases are heard in state courts because criminal law is primarily under the jurisdiction of state governments. States have their own criminal codes and court systems to handle cases involving violations of state laws. Federal courts typically only hear criminal cases involving violations of federal laws.
I doubt it. If I had to choose a cat that was most likely to murder her, it would be Jayfeather. After all, he hates her.