FORT WORTH -- A 34-year-old Fort Worth police officer with two young daughters died early Sunday when his patrol car was rear-ended and burst into flames along Interstate 35W. Officer Dwayne Freeto was pronounced dead at the scene. He had responded to a stranded motorist call on southbound I-35W at Morningside Drive around 3:45 a.m. Investigators said the 21-year-old driver of a Lexus, believed to be a Fort Worth man, slammed into the rear of Freeto's patrol car at high speed. Police said they believe that alcohol also might have been a factor. Freeto was trapped inside his burning car,...