Maybe the culprit pushed him down the stairs, stabbed him, then pushed him down the elevator shaft. Seems like a bit of overkill, but... maybe someone really wanted that money and wanted him more than dead.

[ She cautiously moves closer toward one of the edges and peers over, seeing nothing strange about the landscape below. ] Nothing over here... I poured some out a window Monday night, but the rest of the time it's been on my desk. Doesn't look like it's been moved at all either.

[ She looks over her shoulder with a smirk. ] I just wanted to see if it really is self-filling.