Name: greene Savannah, GA (Sunset 28) (Zone 8b) I have no use for internet bullies!
Some people are sensitive to the latex/sap/whatever so please wear gloves when cutting the plant. If it was frozen it may come back from the base. Prune off the dead/damaged bits and hope for the best. Crotons do not care for temperatures below 50 F so you may need to keep it inside the house until the weather warms.
Sunset Zone 28, AHS Heat Zone 9, USDA zone 8b~"Leaf of Faith"