Darya Dugina Case: FSB Says Terror Accomplice Drank Coffee Before Assembling Bomb

FSB released new video with a supposed accomplice of the car bombing. Meanwhile the Ukrainian ambassador criticized the Pope remarks and said Dugina was killed by Russians in order to blame Ukrainians.
NOTE: Most of the footage shown is from surveillance cameras. But I'm curious: who filmed Natalia in the parking lot? This seems shot from a window, with a mobile phone. Was she a suspect already?