East of los angeles. Hundreds of firefighters and 16 aircraft are battling the pilot fire. It has burned 4500 acres. Smoke has blown all the way to las vegas. In pakistan today, militants shot and killed a prominent lawyer. Then a suicide bomber attacked the hospital where mourners had gathered. At least 70 people were killed. More than 90 were hurt. Both the taliban and isis have claimed responsibility. Tonight syrias biggest city is in danger of becoming a slaughterhouse. The assad regimes army backed by iran and russia surrounded aleppo, but they have not been able to lock it down. Deborah potter reports tonight from inside syria. The key turning point was reached over the weekend. When a newly formed coalition of opposition fighters including some recently affiliated to al qaeda managed to barack through government lines. They released this drone footage which shows the moment a suicide bomber drove a truck through the city, and blew himself up, allowing rebel groups to advance for