"The Virginia Gun Owner's Guide" is probably better than just about any course you could take. it has cites to enough cases to keep your reading for a while.
ALL Virginia lethal force law is case (common) law.
we have no real statute law for lethal force.
The state law for concealed carry is here:ยง 18.2-308. Personal protection; carrying concealed weapons; when lawful to carry.
http://leg1.state.va.us/cgi-bin/legp...0+cod+18.2-308