Eddowes was killed in a square, in a corner, immediately next to an exit, with windows overlooking. Close enough for you?
In Ripperology, we call that 'professional medical opinion'.
The relative skill or lack of skill with a knife is based on the idea that a person would have problems slicing the throat of another human being and would hesitate. This is a fallacy.
The bottom line is that Liz Stride was killed in precisely a manner and in precisely a place that the killer of Chapman and Eddowes would have chosen.
She was killed with someone who possessed skill with a knife, and a very sharp knife.
She was killed within 45 minutes of time and 10 minutes of walking distance of a woman we consider a bonafide Ripper victim.
Two identical killers in the same neighborhood at the same time killing middle-aged prostitutes or just one?
Comment