photographs and when i looked, i immediately identitied it. it was gisele. may 26th, one day before michelle le disappeared. so, what else did she do that day? richey got a subpoena for all the school security camera from may 26th. what he saw in those videos was strange and disturbing and moved gisele to the top of the list of person s of interest. coming up, the strange video trail of giselle, the day before michelle disappeared. walking around with a lab coat on, pretending to be an instructor. weird. yeah. what was she up to? when dateline continues.
to have a partner that is so skilled at what they do is indispensable, and i couldn t ask for a better partner. we re learning some more details about the police response to the florida school shooting. according to reports, the school security camera may have initially misled officers. cnn s kaylee hartung joining me with this. what have you learned? reporter: we re learning of serious confusion experienced by law enforcement and first responders here last wednesday. the coral springs police chief telling the orlando sun sentinel that the broward county school surveillance cameras were on a 20-minute delay. that means in the pursuit of the suspect, while they thought they were looking at real time video of where they could find him, they weren t.