Perhaps not really applicable to this case, but an associated point.
Plakas v. Drinski, 19 F.3rd 1143 (7th Cir. 1994) cert. Denied 115 S.Ct. 81 (1994)
This case involved the shooting of a suspect who was wielding a fire poker. When the officer attempted to arrest him, he charged the officer with the fire poker and was shot by police. Plaintiffs who sued on behalf of the deceased claimed the officer did not use other means of force available to him at that time, listing disabling chemical spray, a police dog, and distance. The court stated "that to permit every jury in this type of case to hear expert testimony that the defendant would have been uninjured if only the police had been able to use disabling gas or a capture net or a Taser a municipality is liable because it failed to buy this equipment. The Constitution does not enact a police administrator's equipment list." The court ruled that there is no legal "precedent" that requires an officer to utilize alternatives to deadly force.