I can link the video if needed, but it is easily available.
The guy did not charge the cops. He did not have the knife in an overhead position as they described.
Suicide by cops? Maybe. He clearly wanted a confrontation with the police, and that is the reason he had the two cans of energy drink sitting on the curb waiting for the cops to show up. However, if he truly wanted to have them kill him, he would have charged them like they said he did. Video show he did not, so more likely he had some mental problems, drugs, whatever. Like the guy taking the video said, a tazer would have subdued him easily.