Probably no trigger, but better safe than sorry.

There's a kid in school that I know pretty well and I feel like he might be clinically depressed. He just seems to be spiraling downwards, bad relationship with parents, struggling academically, and just way more irritable nowadays (which is sometimes how depression manifests in teens). I'm not sure how to approach him about it or if I should just stay supportive and not mention it. I don't want him to end up suicidal or si'ing or anything really bad, but I'm not sure if I should mention it, especially because he's a boy and kinda hostile nowadays.

Advice?
-Sam