Sounds like he went for a swim and found trouble.

"Aamir Ali was camping with friends at Potters Creek Park on the shores of Canyon Lake when he went missing on Friday, according to the Comal County Sheriff's Office.
"His phone, his headphones, his wallet ... his clothing and his t-shirt, his pants and underwear were found by the lake,"

https://www.msn.com/en-us/news..../crime/body-of-man-w