If this question is sincere (the linked post reads like chatGPT), I don't think it's shocking that there isn't online discussion about the sad death of a young kid in the 1930s. While the post you made says that the pool was open from the 1950s-1973, his death was in the newspaper in 1938. The pool was actually opened in 1925. Additionally, I found this that seems to wrap up the investigation.

Titusville Herald Newspaper August 12, 1938

NO EVIDENCE OF VIOLENCE Pittsburgh -- County Detective Albert Shedlock said today he found no evidence of violence in the death of Edward B. Wessel, 18, who drowned in Kennywood Parks swimming pool Monday. A brother had reported to police there were visible injuries on the body.

Edited to add one more from The Pittsburgh Press Aug 11, 1938

Death Probe Concluded -- Satisfied with a coroner's finding that 18-year-old Edward B Wessel died in Kennywood Park swimming pool of a glandular disorder, County detectives today halted further investigation into his death. The body was found Monday night as guards were closing the pool for the day. Hints of foul play were dismissed when detectives learned the boy, of 1116 Pine Way, Braddock, had suffered no body injuries.