need help mommas!

Pamela
My son told my husband tonight that there is a mean girl on his bus. He said that she told him she was going to kill him! Apparently there is also another kid getting picked on too. My son is in Kindergarten and this girl is in 1st grade. What would you ladies do in this situation? I'm obviously going to talk to him tomorrow and see what other info I can get from him but I'm trying to figure out what the next step is. Have any of you delt with this kind of situation?