Yes, this cop killer, who had a history of making threats against the police, DID surrender AFTER a standoff.
Old white male: KNOWN HISTORY of making threats against officers, guns an officer down, attempts to leave the scene, has a murder weapon at the scene, surrenders AFTER a standoff.
Young black male: NO KNOWN HISTORY of previously making threats against officers, said he would give up if he were allowed to talk to his GF, officers not willing to negotiate, man makes threats at the scene of the incident, officers send in dogs and shoot at the same time. Man gets hit 20+ times, no weapon recovered and no medical attention is provided for the suspect.