(Virginia) Tech families want 1-gun-a-month law to stay

[gejohnston]

168. no, and neither seller knew that.

because the clerk had no way of knowing that Cho was ruled mentally incompetent (making him a prohibited person). That is not on him or the NRA. The clerk only knew what the FBI told him. The FBI did not know because Virginia didn't bother to tell them.
Cho violated the Gun Control Act of 1968 by lying on the ATF form 4473. He then went on to commit mass murder.

The clerk would be to blame only if he knew Cho to be lying. Then the clerk would be in federal prison for violating GCA.
A Virginia court ruled Cho off his rocker
Virginia forgot to tell the FBI, leaving them in the dark
The FBI told the clerk to proceed with the sale based on the false information from Virginia
The clerk sold the gun because the FBI said Cho was OK.

with the car driver:
the seller had no way of knowing the buyer had multiple DUIs and was an alcoholic. He is not to blame.
The driver is the only one to blame.

It sounds like you are for prosecuting people who committed no crime, had no way of knowing what as about to happen, for an act someone else did.
That is like the liability protection. It only protects the gun industry from law suits that are basically SLAPP suits (filing friviolus and absurd lawsuits for the sole purpose of driving the target to financial ruin. The tactic was pioneered by corporate criminals to deal with pesky environmental/social justice advocates.)
When was that product liability passed? In 2002, Brady won one suit against Kahr arms because Kahr (IIRC) had a felon working for them (a crime). What the felon had to with the crime gun I can only speculate. But at the least, some HR people should have been canned.

For example:
Ruger makes a pistol, legally sells it to wholesaler with ATF oversight. In this case, NYPD decides to decides to buy Ruger pistols. Wholesaler sells the guns (legally with ATF oversight) to NYPD. Gangsters break into the police armory (like LAPD losing 20 SMGs and several pistols) or (this being NYPD), a cop sells some of those guns to a gang. The gang murders someone. Brady goes after the wholesaler and Ruger, but not the people who are actually responsible.