Maybe if she hadn't ignored her kid so much when he was alive he wouldn't have ended up on the streets with a stolen bike attacking people with a crowbar. Cops should shoot people a little less, but she clearly isn't much of a mother.

Hopefully the ignorance of mental illness that you so arrogantly and effervescently display is isolated to a few single brain celled sub humans such as yourself and does not represent a similar lack of understanding and compassion in our society as a whole.
I suggest that you investigate the laws that exist in our country today that prevent a family from getting help for a mentally ill loved one. A family is not able to get them hospitalized and treated with antipsychotic medications until that person reaches the point of being a danger to himself or others...then when that state of dangerousness takes place people end up dead and idiots like you point fingers at the mom???? Point fingers at the lawmakers because it is the present day laws that prevent parents from getting help for their child, prior to a tragedy like this. It is also untrained policemen unfamilar with how to deal with a mentally ill person.
If you want to do something useful with your time, investigate the laws and find out whats really going on before you rush in with an opinion, then perhaps you can use your time being a help to changing the laws rather than waste it by opining sheer stupidity.
If you care to take time to educate yourself there is an excellent article in The Guardian, dated May 27 2014, titled America's Mental Health Care Crisis: " Families Left To Fill the Void of a Broken System". Perhaps after you read this article you will see fit to make a public apology to this broken hearted mother that you so publicly insulted and disgraced.
People who just can't wait to jump in with an opinion on a subject that they obviously know nothing about amaze me. What sort of gratification does someone get from publicly advertising their ignorance and why the need to make yourself look sooooooo stupid in front of an internet audience?

Out of curiosity, how were the police supposed to know he had mental problems? Had they had a previous encounter with him? When you attack someone with a 3 foot crowbar, maybe you should expect some sort of deadly defense.