Deadly LA wildfire creeps deeper into forest

       The ferocious wildfire burning north of Los Angeles has turned into a creeping giant, steadily chewing through thick and dry brush on its eastern flank. Crews have reported good progress,but the blaze that has already claimed the lives of two firefighters was far from being fully contained.
       Investigators, meanwhile, were working to find the arsonist responsible for the huge wildfire that has burned through 624sq km of the Angeles National Forest.It was 42% contained on Friday.
       More than 76 homes and dozens of other structures have been destroyed.
       Governor Arnold Schwarzenegger offered a $100,000(3.4 million baht) reward last week for information leading to the arrest and conviction of the culprit.
       In the rugged terrain of the San Gabriel Wilderness, fire officials relied on aerial water drops to slow the flames and the backbreaking work of hand crews to build fire lines. While flames inched down steep canyons, crews defended a cluster of church camps and a bar along the Angeles Crest Highway.
       The weather forecast called for cooler temperatures and higher humidity.
       At least a dozen investigators are working to analyse clues found at a charred hillside, including incendiary material found there. Officials said the fire was arson, but were still trying to learn who was responsible and understand how it was set.
       "We are in the early stages, just beginning to put things together," said Los Angeles County sheriff Lieutenant Liam Gallagher, who is heading the murder investigation.
       "Firefighters losing their lives in the line of duty is an added incentive, but we work every case to the fullest," Lt Gallagher added.
       Near a large shade tree where crews get their twice daily briefings, firefighters set up a makeshift memorial for Captain Tedmund Hall and Specialist Arnaldo Quinones. The fallen firefighters had helped save about 60 members of an inmate fire crew as flames approached their camp.
       They set a backfire that allowed the rest of the group to reach safety. The pair died when their truck plunged 240m down a steep mountain road.
       Most wildfires are caused by human activity, and government statistics show that people were faulted for 5,208 wildfires in Southern California in 2008, the highest number since at least 2001.
       Between 2006 and 2008, Southern California was the only region of the US to see a significant jump in the number of wildfires blamed on people.
       Still, very few of the forest fires lead to criminal or civil cases. The US Forest Service recorded nearly 400 arson wildfires since 2005, records show.
       The number of firefighters assigned to the Station fire continued to grow to more than 5,244, and a mini-city sprung up at a park in the Lake View Terrace neighbourhood, complete with rows of showers, a mess hall that served firefighters 5,000-plus calorie meals each day and souvenir T-shirt vendors.
       The cost of fighting the fire was estimated at $37 million so far.