Goofs

When Blond Mohawk is running through the park he is barefoot, But when he runs away after the accident he's wearing shoes.

In the first shot a semi-automatic pistol is being loaded from a box labeled as revolver ammunition.

Elevator doors do not remain open for extended periods of time like they do when Mohawk guy is cowering in the elevator.

When Maddie throws the box it crashes through the window behind Addison. Window glass in high rise building is tempered to withstand impacts so the box would have bounced off and fallen to the floor, especially given the low speed with which she threw it.

There are several witnesses who saw the stabbing victim fall out of the elevator with the knife in his back so neither Addison nor Maddie could be involved so the police accusations are an illogical plot twist.