Please help! Neighbour suspected of poisoning cats
The image isn't perfect because it's extremely zoomed in, but you can see there's a small red bowl with what seems to be water in it.
Yesterday, my neighbour (not suspected one, but a cat lady) told me two of her cats have recently died and one is severely sick, she strongly believes they were poisoned. She's not the only one this happened to. She suspects a neighbour living right next to us (old woman who hates cats) so I've been keeping a watching from my own home. Just minutes ago this morning I saw the old woman go to the bowl and fill it. I didn't see all of it, but the second time she went over the bowl, it seemed to be water that she filled it with (I am not sure at all).
I've got my own 1 year old cat. We try to not let her go out, but we taught her to go play in our the garden. She never leaves the garden, except during sunset, where she always jumps to that neighbour's garden (suddenly feeling explorative I assume). She always was nice to us and our cat so I didn't want to suspect her even though she does indeed dislike cats in general. I'll be so much more careful now but I still need to do something about this, I'm really scared for my little companion and all the neighbourhood cats.
Could anyone tell me if my suspicions could be founded or not? What type of "water poison" mixture could attract cats? I really don't see what could be in there but I can't accuse without being able to explain why. Please help us save our kitties!