This is very sad and very unfortunate to happen when the reptile world is getting so much bad press already. She should have had someone with her. My house rule is if you are going even open the cage to a snake more than 6ft, have another person with you.
Many of you are jumping to conclusions and doing nothing but disrespecting a dead woman. Yes, she was careless and should have waited to medicate the snake until her husband got home. This doesn't mean you should sit there and insult her and call her a moron. There are people out there who are far worse and they are still alive and keeping their snakes. This woman obviously was doing some things right if she was actually medicating the snake. A moron would have just let a snake die or suffer. But no, she was medicating the snake like any good keeper would do. Should she had someone with her at the time, yes, but from time to time keepers sometimes think they know the animal and feel comfortable being around it alone.
So all you people out there who are suspecting her husband for killing her and calling her names and saying what a horrible person she is, shut up and have some respect for a fellow reptile keeper.