Many officers lack the training to deal with the mentally unstable, which can often lead to violence, experts say
The measure would initially affect 13 states.
Families of those slain see a link that stretches from Trayvon Martin to the Charleston 9
A majority of Americans say protests of unfair treatment always make the country better.
Nine states have no laws specifically governing police use of force, the Amnesty International report said.
But overall confidence in police remains unmoved from a year ago.
A judge in Cleveland found probable cause to charge a police officer with murder for the death of the 12-year-old, who was fatally shot while playing with a toy gun last year at a park.
Criminologist Jeffrey Ian Ross analyzes the actions of the McKinney, Tex., police officer that were caught on camera.
Sens. Boxer and Booker introduce legislation that would require the reporting of deadly-force incidents.
Legislation introduced after Post’s reporting on police shootings