Who was the killer in Perry Mason's The Case of the 12th Wildcat?

In "The Case of the 12th Wildcat," the killer is revealed to be Lorna Morrow. Throughout the story, various suspects are considered, but Mason uncovers the truth behind the murder through clever deductions and the unraveling of complex relationships among the characters. The case highlights Mason's legal acumen and ability to expose the real motives behind the crime.