First let me express my deepest condolences for your loss...
Information on blue whale the "game" is all over Youtube....it is the opposite of getting psychological help for those that are depressed and suicidal already. It actually encourages it and promotes it. Should be shut down and everyone arrested associated with it. This is not really a video game (see video below) and video games in general should not be villainized. This is a social media psychological manipulation and brainwashing platform...