en_tn/act/07/29.md

General Information:

Stephen's audience already knew that Moses had married a Midianite woman when he fled Egypt. (See: rc://en/ta/man/jit/figs-explicit)

after hearing this

The implied information is that Moses understood that the Israelites knew that he had killed an Egyptian the day before (Acts 7:28). (See: rc://en/ta/man/jit/figs-explicit)