Sounds like a fair decision.
But, as the article points out, the way current laws are written are quite favorable to officers that use excessive force. Quite favorable.
The author of that piece seems to do a bit of hand waving on the issue of use of force by law enforcement. I think it's more useful to examine the actual standard by which Officer's actions will be judged by the grand jury investigation and potential criminal trial. I've omitted the optional language for multiple counts and arrest pursuant to warrant to help with readability.
306.14 JUSTIFICATION: USE OF FORCE BY LAW ENFORCEMENT OFFICER
PART A–GENERAL INSTRUCTIONS
One of the issues in this case is whether the use of force by the defendant against [name of victim] was lawful. In this state, the use of force including the use of deadly force by a law enforcement officer in making an arrest or in preventing escape after arrest is lawful in certain situations.
A law enforcement officer can lawfully use force to make an arrest or to prevent escape if he is making a lawful arrest or an arrest which he reasonably believes to be lawful. An arrest is lawful if the officer reasonably believes that the person being arrested has committed or is committing a crime.
In making a lawful arrest or preventing escape after such an arrest, a law enforcement officer is entitled to use such force as reasonably appears necessary to effect the arrest or prevent the escape.
A law enforcement officer in making an arrest need not retreat or desist from his efforts because of resistance or threatened resistance by the person being arrested.
But in making an arrest or preventing escape, a law enforcement officer is not entitled to use deadly force, that is, force which he knows will create a substantial risk of causing death or serious physical injury, unless he reasonably believes that the person being arrested is attempting to escape by use of a deadly weapon or that the person may endanger life or inflict serious physical injury unless arrested without delay.
And, even then, a law enforcement officer may use deadly force only if he reasonably believes the use of such force is immediately necessary to effect the arrest or prevent the escape.
PART B–SPECIFIC INSTRUCTIONS
On the issue of use of force by a law enforcement officer, you are instructed as follows:
First, if the defendant was a law enforcement officer making or attempting to make a lawful arrest or what he reasonably believed to be a lawful arrest of [name of victim] for the crime of [name of crime] and the defendant reasonably believed that use of force was necessary to effect the arrest of to prevent the escape of [name of victim] and
Second, the defendant reasonably believed that [name of victim] (was attempting to escape by the use of a deadly weapon) (or) (would endanger life or inflict serious physical injury unless arrested without delay), and the defendant reasonably believed that the use of deadly force was immediately necessary to effect the arrest of [name of victim], then the defendant’s use of force was lawful.
The state has the burden of proving beyond a reasonable doubt that the defendant was not entitled to use force as a law enforcement officer. Unless you find beyond a reasonable doubt that the defendant was not entitled to use force as a law enforcement officer against [name of victim], you must find the defendant not guilty.
As used in this instruction, the term “serious physical injury” means physical injury that creates a substantial risk of death or that causes serious disfigurement or protracted loss or impairment of the function of any part of the body.
It seems from kind of the skeleton narrative asserted by the FPD and the
Josie caller, Wilson doesn't claim Brown "was attempting to escape by the use of a deadly weapon," so Wilson 's claim to use of force
to effect arrest is limited to a reasonable belief that Brown "may endanger life or inflict serious physical injury unless arrested without delay."
The narrative as it's currently asserted at least seems to be more in line with the traditional justification of self defense with kind of a concurrent argument of use of force to effect arrest to prevent Brown from endangering Wilson's life or inflicting serious injury. Other than Wilson's total lack of duty of retreat and avoidance, that's not particularly different from the traditional civilian justification of self defense.
As far as I can tell from the issues that have shown themselves in this case, Wilson's claim hinges on the justification for the first shot (i.e. was the initial use of force reasonable) and the last (i.e. if the first use of force was reasonable, did some circumstance intervene to take away that reasonableness prior to the fatal shot.)