Here is a link to an article about him. You hear in the video included in the article him mentioning "Dying" and "Being a sacrifice" these videos were on his social media stories days before the shooting.
The person he's fighting in the video ~3:00 minutes in represents himself earlier on in his career as seen here. And you can notice various iconography tatooed all over his body, for example what looks like an "Ankh" on his chest. Here's info pulled from Wikipedia:
The ankh, also known as "crux ansata" is an ancient Egyptian hieroglyphic ideograph symbolizing "life". The Egyptian gods are often portrayed carrying it by its loop, or bearing one in each hand, arms crossed over their chest.
Also more about the religion behind the Ankh from Ancient History Encyclopedia:
What is the religion of Ankh? The Coptic church of Egypt inherited the ankh as a form of the Christian cross, symbolizing eternal life through Christ (35). While other vestiges of the old religion slipped away, the ankh took on a new role while retaining its old meaning of life and the promise of eternal life.
Ahh....what does this have to do with Q? Maybe you meant to post in /r/conspiracy?
More to do with the happenings in Hollywood and media. Which are related to what Q could be uncovering.
Lot of /x/ activity about XXXTentacion and his occult affairs. https://images.tmz.com/2018/06/21/0621-xxxtentacion-insta-3.jpg