Seriously, who depends on Wikipedia as a reliable reference? How about something a LITTLE more serious, like the Smithsonian magazine?
To wit: http://www.smithsonianmag.com/...
"But Arbuckle's lawyers introduced medical evidence showing that Rappe had had a chronic bladder condition, and her autopsy concluded that there "were no marks of violence on the body, no signs that the girl had been attacked in any way." (The defense also had witnesses with damaging information about Rappe's past, but Arbuckle wouldn't let them testify, he said, out of respect for the dead.) The doctor who treated Rappe at the hotel testified that she had told him Arbuckle did not try to sexually assault her, but the prosecutor got the point dismissed as hearsay."
"It wasn't until the third trial, in March of 1922, that Arbuckle allowed his attorneys to call the witnesses who had known Rappe to the stand. ...They testified that Rappe had suffered previous abdominal attacks; drank heavily and often disrobed at parties after doing so; was promiscuous, and had an illegitimate daughter."
If not a hooker, then perhaps it's too close to call. Fatty deserved better.