@jet45s There were actually two crossbows in two separate corners. They were positioned at the corners of the wall opposite of the glass cases, so hiding anywhere that isn't inside the glass case or behind a person wouldn't work.
hmm what should i use to break these glasses?... i will use my fist! seriously, do people really hit things with their fist? *frustration flashbacks* crap i actually did use my fist to hit the wall...