Who was probably at fault that Barbara died?

Choices:
A. Gregs' father
B. The truck driver
C. It was a series of events where no one person is 100% responsible.
D. not enough information
It was a series of events where no one person is 100% responsible.
The pews were packed at First Baptist Church, Coreyville. As part-time music minister of the church, Greg Tenorly sat in his usual place on the podium, behind and slightly to the left of the pastor. He wondered why attendance was up. It was a perfect day--seventy degrees, sunny. That had to be part of the reason. And the sermon title was 'Forgiveness Fighters.' People would much rather hear a sermon about forgiveness than one about Hell.
Everybody wanted to be forgiven. But when it came to forgiving others--many people fight it. The pastor said these folks were the Forgiveness Fighters. He read a scripture passage.
Then came Peter to him, and said, Lord, how oft shall my brother sin against me, and I forgive him? till seven times? Jesus saith unto him, I say not unto thee, Until seven times: but, Until seventy times seven.
When Greg heard these verses, which he knew by memory, it was like a slap in the face. How many times had he already forgiven his father? But he knew that 'seventy times seven' did not mean literally 490 times. The number 'seven' in the Bible symbolized completeness. It meant forgiving an unlimited number of times. But how could Greg ever forgive his father for killing his mother?
Maybe if Greg had been there it wouldn't have happened. But he had moved out of the house during his first semester at Lamar University--even though it was only forty minutes away, in Beaumont. A fellow music major had been more than happy to let Greg share the little rent house and the expenses.
Ralph Tenorly had sent his wife to the grocery store for more chips and dip. The big game was already starting, and there were no snacks in the house. But on her way back home, a pickup truck blew through a stop sign, crashing into the driver's side of the car. Barbara was killed instantly.