How to use "downwards" in a sentence

He walked blindly downwards in this way for a long time, his clothes wet with the blood from Marius's wound, the faint whisper of the young man's breath in his ear

Valjean repeated the address until he could remember it, returned the wallet to Marius's pocket, picked Marius up again and continued his journey downwards towards the river

The camera was pointing downwards, and I made an effort to look.