Seems like there's a lot of room for gray area here, but if you saw someone in a life threatening situation but you had zero intention of helping them in any way (including calling for help, looking/thinking of ways to help), that's pretty dang bad. If you were too afraid to help because it would've also put you in a life threatening situation, that's a little more understandable. Best case scenario, you at least called for help and tried to come up with SOME solution while you waited for help to arrive (even if they ended up dying)