That stuff is standard fare in big city gang “culture”...I really don’t know why anyone is shocked.
Chicago is the murder capital of America, a fact of which Chicago gang-bangers are extremely proud (have a look at gang vids on YouTube), and the statistics increase every year.
Intelligent people refrain from posting when they don’t know what they are talking about. Your post is an excellent example of not heeding that dictum and exposing your ignorance.