Quote from WFAA web site....
FW Star Telegram web site also has a small article.A Dallas police officer is in serious, but stable condition after being shot overnight. Meanwhile, three other people are dead, including some apparent good samaritans. Police say Sen. Cpl. Jerry Poston was responding to a report of a major accident around 2:30 a.m. on southbound Stemmons Freeway near Commerce and attempting to help a victim when he was shot. Three others are also dead, including some apparent good citizens who stopped to help at what they though was an accident. Police say one carload of good samaritans managed to return fire after one of them was shot. It is not clear if the suspect is among any of the dead or is a second hospitalized gunshot victim. Several people at the scene were taken into custody, but no one has been arrested.
http://www.star-telegram.com/news/story/199515.html
3 dead, officer shot on I-35E
Star-Telegram report
A man was shot and killed after shooting a Dallas police officer early Sunday, according to an NBC5 report.
Two other people were killed in the incident near downtown Dallas, according to the report.
According to a Dallas police spokesman, at 2:15 a.m. two officers reponded to what they thought was a shooting, an accident, or both on southbound I-35E in front of Reunion Arena.
They found two people sprawled on the freeway in front of a car, and each officer went to help one of the wounded, said Lt. Vernon Hale. One of the officers was then shot by a man sitting in the driver's seat of the car, he said.
The shooter was himself shot and killed by another person, Hale said. Neither officer fired a shot, he said.
The officer, a 17-year veteran, is in serious condition at Methodist hospital with non-life-threatening injuries, NBC5 reported.
The I-35E service road is shut down between Oak Lawn Ave. and Colorado Blvd. while officers investigate the incident.