Updated

When Dawn Nguyen (noo-WHEN') bought a semiautomatic rifle and 12-gauge shotgun 2½ years ago, she indicated on a form that she would be the owner of the weapons.

Police say that was a lie and that she actually bought the guns for a convicted felon who couldn't legally possess them.

That felon was 62-year-old William Spengler, who used the weapons Monday to ambush firefighters lured to a blaze he set at his house in upstate Webster, killing two people and wounding three before killing himself.

Authorities charged Nguyen on Friday with lying on the form.

U.S. Attorney William Hochul says it's against federal law to provide any materially false information related to the acquisition of firearms.

Nguyen is scheduled in court on Jan. 8. She declined comment Friday.