Looks like shooter's roomate didn't know anything about the shooting, thought it was someone else

[LeftInTX]

44. It says discord

Investigators asked if he would show them the messages on discord,he opened it and showed several messages to investigators and allowed investigatorsto take photos of the screen as each message was shown by Robinson’s roommate.These photos consisted of various messages, including content of messages betweenthe phone contact name “Tyler” with an emoji icon, and Robinson’s roommate’s device The content of these messages included messages affiliated with the contact “Tyler”stating a need to retrieve a rifle from a drop point, leaving the rifle in a bush, messagesrelated to visually watching the area where a rifle was left, and a message referring tohaving left the rifle wrapped in a towel. The messages also refer to engraving bullets,and a mention of a scope and the rifle being unique.

https://www.documentcloud.org/documents/26090603-robinson-affidavit-of-probable-cause/