Sorry about your family's loss.
A word to others out there: if you decide to start making a living will, make sure you understand the legalities in your area about when it does and doesn't apply.
For example, here in Orange County, CA, there's a prehospital EMS DNR form. If you don't have that, you're out of luck. Hospital DNR's don't count, and living wills don't either.
Also, many hospitals won't honor forms from different facilities.