(AP) — The man accused of killing four people in a Nashville Waffle House in April used to send his father text messages in which he punctuated everyday chitchat with delusional rants.

The texts filed as evidence in federal court this week include plenty of discussion about work and meals.

READ MORE: Chicago Weather: Snow Showers Return, Colder Temps During The Week

But Travis Reinking also writes that his phone is being hacked and people are trying to kill him. The 29-year-old from Illinois accuses his father of being involved, writing last year, “If your helping them, please stop no matter what it cost you.”

READ MORE: ISP Responds To Shooting On Interstate 290, 1 Person Injured

After November 2017, Reinking stops responding to his father’s messages. In one of his last texts to his son, Jeffrey Reinking writes, “Mom and I are wondering if everything is ok. We haven’t heard from you. And we are getting concerned.”

MORE NEWS: Chicago Man Arrested After Firing Shots From His Car On Indiana Toll Road

Copyright 2018 The Associated Press. All Rights Reserved. This material may not be published, broadcast, rewritten or redistributed.