While there are a lot of crazy ways to identify someone, most of those only work in ideal or repeated situations.
For example Iphones faceid requires special cameras and for you to scan your face with the cameras before it can work.
Its obvious from the videos and photos of the incident that there isn't quality footage of the events, meaning the quality of any tracking software is greatly degraded (otherwise we could solve all crimes). Since all tracking/identification software works on probabilities, that's not a strong case to make that you've ID the right person.