>> i think so, yes. >> doctor jeff lapointe did not know for sure was making brigida sick.nd, the symptoms indicated she might have been exposed to a toxic chemical. and he realized, she might not be the only one. >> there are so many moving pieces, i now have a child in the equation, i have a spouse. let's make sure we are observing them, make sure the child is safe, that they have not been exposed. >> he had brigida's husband and son admitted to a separate hospital for testing. and for safety sake, they banned all visitors from her hospital room, even immediate family. >> there was a time where he did not know what was happening with your sister. did you think, this visit, she might be gone already, nobody is telling us? >> yes, oh yes. i was like a zombie, a walking zombie. just going through the motions, hoping that she is okay. knowing that if they had not called me to tell me that she was gone, it is because she is still here. >> olga is two years younger than brigida, they have always been close. >> we should a bedroom when we were little. of course, every night was