Sadly this isn't the first time. Years ago I read a story about a man who took his mother to get an MRI. While he was there his gun went off and killed her.

How did she sneak it in though? Usually aren't you wearing a hospital gown at this point?

Reminds me of The One:
https://www.youtube.com/watch?v=J-NppFUWG9k&t=2m0s

This article mentions a much more interesting (imo) situation:

https://www.iflscience.com/this-is-why-you-should-never-wear-a-metal-butt-plug-in-an-mri-machine-68886

“Be sure to not have any metal objects”
“Okay, just have my handgun”

Anyone remember the “anal rail gun” from earlier this year? https://www.snopes.com/fact-check/mri-butt-plug-injuries/

On the bright side, she prevented an attack by a gunman in the MRI.

/s

Saw a similar case this year here in Brazil, earlier in february. A pro-gun lawyer was accompanying his mother on a MRI. Once the thing started, his gun, a 9mm pistol, was sucked and shot once it got stuck on the MRI, hitting the man in the belly. He died 21 days later.

Woman WHAT?

I'm guessing she was there to get an MRI because there was something wrong with her brain.

There are one or two entries on the wikipedia list of unusual deaths like that.