I was in a similar position to LW, although "just" SIDS, no signs of me or anyone else having done anything wrong. Oh, and I was a trained nanny, which made f all difference on the day.
I didn't cry, or anything at all. I now think I must've been in shock.
I was very calm speaking to the police, and everyone else, for months after.
Then someone else I knew (not very well) died about 4 months later, and it was as if a dam burst. I cried and cried and it felt as if I would never stop. The initial feelings were terrifying, and I think I couldn't even process it all.
I've no idea about her case, and no intention of watching the programme, but just wanted to say how angry it makes me when people make assumptions , as pps have said, about women who don't react enough, or too much.
After that initial 4 months this has affected every part of my life for decades. No all day, every day, but it undoubtedly changed the way I saw life, motherhood, and my own abilities as an adult. There are even some small every day moments that can make me physically sick because they happened that day too.
I've never said anything about it to anyone before, but some of the comments on here just proved some kind of last straw.