SWAT teams review tactics in wake of cop killings
News report: Oakland lays heroes to rest
Calif. review of officers' deaths could bring changes in training
ITOTA: Counter-ambush tactics for the urban jungle
“Slicing the pie” vs. “button hook” for room entry
SAN FRANCISCO — Law enforcement experts call residential entryways the "fatal funnel" -- and that is where two Oakland police officers met death when they confronted a barricaded gunman, who allegedly had already killed two other officers hours earlier.