The cold equation can't have more than one passage because it would be no room
It’s probably best to be straight up and ask. But if you don’t want to do that, you could just mention her up in passing. Such as “Hey did you see what Anna posted?” (let’s say Anna) or maybe some thing like “hey I literally thought I saw Anna at Walmart” and then when this person is somehow brought up, you could be like “speaking of which, I didn’t see her at the party? Everything okay?”
Perhaps they could place Dana in a special care program that caters to children with his characteristics, and people that are experienced and educated in solving behavioral issues related to young children. They could also have him evaluated for mental conditions such as ADHD, and have a doctor prescribe special care for the condition such as medication or a children's program.