I don't want to give this murderer any more notoriety by showing his photo or mentioning his name. You can find online all that along with that of which I write below.
He practically advertised his intentions of mass murder on the internet. If he were Islamic, somebody would have acted upon the dictum "if you see something, say something". Homeland security should be following up on these Incel type domestic terrorist as if they were Muslim international terrorists.
He was suicidal, he threatened to "kill everybody".
He was transphobic which might account partially for his wearing of women's clothing as a disguise.
Police in response to concerns about his mental health removed knives and swords from the home. He would seem to have been a candidate for the Red Flag law, but family member apparently didn't pursue that route.
His father was an unsuccessful Republican candidate for mayor of their Chicago suburb.
He, like his father, is a Trump supporter.
His father "liked" a pro-gun tweet in the aftermath of Uvalde.
His mother sold quack cures and dubious therapies online.
His looks like a weirdo. He is reminiscent of the Sandy Hook killer's appearance with addition of facial tattoos.
The sickening audio of the gunfire sounded like a machine gun. There is no good reason for anybody to have such a high-powered, high-capacity rapid-fire weapon like this kid used to kill seven people and injure dozens more.