A 40-year-old man obsessed with Selena Gomez is accused of killing his mother, sister, and her two children at their Oklahoma City home, reports The Oklahoman.

Daniel Green was arrested Wednesday, August 21, near a 7-11 after a family friend discovered the four bodies and bloody footprints on the doormat. The deceased are Daniel’s 57-year-old mother, Sallie; his 34-year-old sister, Rebecca Cizek; and her two children, Katherine, 16, and Amario Dominguez III, seven months.

Sallie and the baby were killed via gunshot wounds to the head; details of Rebecca and her daughter’s cause of death have not been released. The suspect has prior convictions on weapons and drug charges, reports Oklahoma’s News on 6.

Daniel’s obsession with Selena Gomez may play a factor in any forthcoming trial, channel 6 adds. His fascination with the 21-year-old pop star is well-documented on what is believed to be his Facebook.

There, Daniel posted statuses including, “i want her too be my eternal wife and the queen of my kingdom forever." Daniel also threatened Selena’s ex-boyfriend Justin Bieber with the October 2011 post, “Justin Bieber is going to get a bullet in his head,” reports The Daily Mail.

Selena Gomez has yet to publicly comment on the murders.

Sources: The Oklahoman, News on 6, and The Daily Mail