2002 non-supercharged 3.8.
Yes, battery connections have been checked multiple times. New battery tried. If it weren't for the "no crank" issue that has popped up a few times I think you are right about the crank sensor.
Trying to nail down the issue and that's why I'm driving the car this week. I've driven the car numerous times during the last 9 months and it has never died on me. There was one time were I think it may have died for a second or two when I was going 35 but it kept going after that brief hesitation with no restart needed. Would I bet my life that it indeed died on me, no, it was just too quick and I really didn't get a chance to look at any guages because of traffic.