The answer depends on whether the individual was charged with a state crime or a municipal ordinance violation. If there is a $4,000 bond, it is likely a state crime and can carry substantial penalties.
First Offense Third Degree Assault is a misdemeanor punishable by up to fifteen days in jail.
Second Degree Assault is a Class C felony punishable by 5-15 years in prison.
First Degree Assault without serious injury is a Class B felony punishable by 5-15 years in prison as well.
First Degree Assault with serious injury is a Class A felony punishable by 10-30 years in prison.
This is a potentially very serious offense, and requires immediate legal assistance. Keep in mind that in Jackson County, if you pay the bail, he may become ineligible for a court appointed attorney.