East Side Story

Okay Ya'll, I have given up how to find either batteries or another light source since my bicycle lamp went dead. I found the crowbar to open the crate at the train station and have successfully knocked Leonard out cold in Richard's apt. I assume I need to find something to tell me the code to Leonard's filing cabinet, But I need a light! Help Please! P.S. Took my last chemo treatment two days ago. I don't need this stress! Lol!