MrBallen

It was how they showed up.

When Frison saw how they arrived, his jaw dropped because finally he'd found the lead he could follow.

Both men were separately driven to the hospital in taxis.

And one of the taxis license plates was clearly visible on screen.

That evening, Frison, Massinio, and a group of officers burst into the lobby of Hotel Azur and Nice.

In Frison's hand was a photo of both of the shooters.

After calling the taxi company, everything had moved very quickly.

The taxi dispatch had a record of these two men's rides and gave detectives the mobile numbers that were used to book each cab.

And it didn't take long for Frison's team to connect those numbers to two burner phones that were purchased just hours before the shooting at a store about two hours away from the hospital in a French city called Marseille.

And then by using closed circuit camera footage, the police have been able to track the shooter's movements prior to the shooting.

First, as they left that store with their burner phones, and then as they boarded a train to Nice, and then stopped at Hotel Azor before getting taxis to the hospital.

So that's why Frison and his team were at the hotel now.

In order to find out who planned this attack, they needed to ID the shooters.

They were hoping somebody here could.

So Frison approached the reception desk with the picture of the shooters and asked the person manning it if they had seen either of the men in the photo.

And the receptionist said, yes, those men had rented two separate rooms just the day before, but they had already checked out.

And so Frison wrote down the names the receptionist gave him for these two men, but the names were not familiar.

Then Frison and Massinio split up to actually go search the rooms.

Moments later, Frison and some officers hurried into a very clean hotel room.

And the receptionist had told him that this was going to be the case because the maids had already been in and out of that room.