"Assassination." That's the word U.S. Attorney General Eric Holder used Monday night when he called the murders of two New York City police officers on Saturday.
New York and police departments nationwide are on high alert for copycat attacks in the wake of the brutal execution. The NYPD is investigating at least 15 online threats. The NYPDÂ released new surveillance video today that captures the shooter, Ismaaiyl Brinsley, just before he went on his murderous rampage. The video shows the 28-year-old in a New York mall, carrying what appears to be a white styrofoam box Saturday afternoon. Police say the box ilprobably holds the gun he used to kill officers Wenjian Liu and Rafael Ramos.
Investigators also discovered video on Brinsley's cellphone of a New York City protest earlier this month. They say Brinsley was a spectator on a day of nationwide protests over the deaths of Eric Garner and Michael Brown.
Authorities are still trying to determine Brinsley's motivation as well as what he did during the crucial two-and-a-half hours before the shooting.
CNN Miguels Marquez has more on the events leading up to the shooting of two NYPD officers, and thereafter.
The family of twenty-two year old John Crawford III is filing a wrongful death lawsuit against Walmart and police. Crawford was holding an air rifle he had picked up off a store shelf when police, who thought it was an active shooting situation, entered the store and shot him. The police officer was not indicted by a grand jury.
Adding to the family's outrage: new video shows police interrogating Crawford's girlfriend just after he was shot, accusing her of lying and threatening her with jail time.
CNN's Erin Burnett has more.
The death of 12-year-old Tamir Rice, who was shot by a Cleveland police officer has been ruled a homicide, the Cuyahoga County Medical Examiner's Office said Friday.
Police say Rice was pointing a pellet gun at people shortly before officers pulled up and shot him mistaking the pellet gun for a real firearm.
Is this enough to indict the officer?
CNN's Joe Johns is OutFront.
The officer at the center of the Eric Garner chokehold case that has ignited mass protests across this nation is telling his side of the story to investigators.
CNN learned that officer Daniel Pantaleo has spoken to the New York Police Department's internal affairs detectives. The officer insisting that as he was taking down Eric Garner he was not using the controversial chokehold technique that is prohibited by the police department.
CNN's Jason Carroll is OutFront with more.
Protesters rallying at New York City's city hall have released a list of demands in the aftermath of a grand jury decision not to indict the police officer in the chokehold death of Eric Garner. Those demands include that the state of New York "appoint a special prosecutor to investigate and prosecute all criminal cases involving the use of force, including deadly force, by police officers."
This comes as the prosecutor's office confirms to OutFront that prosecutors will present to a grand jury the case against a white police officer who fatally shot a 12-year-old Cleveland boy while he was holding a toy gun.
CNN's Erin Burnett reports.