12:58 PM ET

The man driving the pickup truck that crossed into the oncoming lane and hit the van carrying college golf players, killing nine people, had meth in his system.

Toxicological testing showed the presence of meth in the father's blood, as well as the fact that he was driving, according to theNTSB.

Six members of the men's and women's golf teams and their coach were killed in the crash along with a man and his son.

East of Texas' border with New Mexico is where the collision happened. The roads in the area are often busy with traffic related to oil and gas development.

The left front tire of the truck blew before the crash, as was previously reported by theNTSB. The investigators have not found any evidence of a tire failing or a loss in tire pressure.

The road they were on was divided into two lanes, the north and the south. The road was straight but there was no illumination.

The people killed in the van were the coach, players, and Karisa Raines.

Two other students were hurt.

Freshman were the majority of the students at the private Christian university who were getting their first taste of life away from home. James wanted to be a head coach, and he was excited to be there, according to those who know him.

Some of the people who moved to the area in the 70s with other Mennonite families started farming and ranching operations in the area. A fire that started in the kitchen destroyed the home thatSiemens and his wife had lived in for a decade.

The probable cause of the crash is not yet known.