The Anna Police Department continues its investigation into the early morning head-on collision that killed one driver and left the other driver in critical condition on May 28.

The accident occurred at Highway 121 and Collin County Outer Loop Rd. According to Anna Police Sgt. Jeff Caponera, Zelia Alvarez of Westminster was driving her GMC Yukon SUV and collided head-on with a Chevrolet 2500 pickup truck driven by Lindy Lawley of Columbine. Both drivers were transported via CareFlite to Medical Center of Plano. Alvarez, however, died on the way to the hospital.

Alvarez was a court clerk for the city of Prosper and was on her way to work the morning of the accident. She also was a former employee of the city of Melissa. Lawley, a Plano firefighter, had just gotten off work and was following a friend north to help him with housework. Currently, he is in a medically induced coma and investigators have not yet spoken with him, according to Caponera.

"We have now spoken with some witnesses, but none of them actually saw the accident occur," said Caponera. "While preliminary analysis points to the accident happening in the south lane, we won’t have a definite conclusion until all the analytical data is verified."

Emergency personnel have responded to the eight-mile stretch of Highway 121 in Anna far too often, according to Caponera.

"There have been seven deaths along that stretch of highway in the last two years. This stretch of roadway is a deadly roadway," he said. "People just drive at a high rate of speed along here. It’s not unusual to catch someone driving 85-90 miles an hour."

"The department will step up enforcement in that area and we will be more visible," added Caponera.