The man charged with fatally shooting an engaged Seattle couple, severely injuring his girlfriend and wounding two others at a Washington state musical festival told police he was hallucinating on mushrooms at the time, according to an arrest affidavit.

Josilyn Ruiz, 26, and her fiance, 29-year-old Brandy Escamilla, were pronounced dead after being shot as they walked through a campground at the Beyond Wonderland electronic dance music festival at The Gorge Amphitheatre in Grant County, Washington, on June 17.

Ruizs sister said in an Instagram post that the couples love for each other was truly infinite. Brandy was her soulmate and her greatest love and reason for living. Their love was unconditional and unbreakable, something so profound that I always envied. Clearly it was so strong it kept them together until the end.