At 1:45, Derrick Wilson, the security guard on duty at the desk overnight, felt unwell and went into the back bathroom, where he remained for approximately a quarter of an hour. For fifteen minutes prior to Lula’s death, therefore, the lobby of her building was deserted and anybody could have entered and exited without being seen. Wilson only came out of the bathroom after Lula fell, when he heard Tansy Bestigui screaming.