CLEAN : Police name suspect arrested in Ferguson shooting

Jeffrey Williams, a 20-year-old man, faces multiple charges including two counts of first-degree assault for shooting two police officers in Ferguson. He is also charged with firing a weapon from a vehicle, classified as a Class B felony in Missouri, and three counts of armed criminal action.

What is the age of Jeffrey Williams mentioned in the text?

How many counts of armed criminal action is Jeffrey Williams charged with?