Certainly Jack took a lot of chances, just thinking about Mitre sq., he had so little time to do "his work" he must have known about or heard the police patrol/s and their frequency yet, he did what he did, Eddows had been seen with a Man not long before the Murder, if it was him then he'd been seen - he doesn't seem to care, alright we know he'd just done the Stride murder so he must have been raging at his failure so, he must have been so mad that he HAD to do a proper job and he must have had to do it the same night or he'd have failed his task?
He too, probably knew that some if not most warehouses had some sort of Night watchmen and indeed, there was one very close by yet he still did what he did! Now either he was a cocksure chap or he was completely insane and didn't give a tuppenny damn if he was caught or not.
I'd imagine that when the urge arises and you see Red then, you do what you do and don't even think about the consequences- whoever he was he was obviously totally mad, I've often wondered if say, one of the constables on Mitre sq or indeed, any witness attempted to challenge the Ripper, would he (JTR) have gone hand to hand with them and sliced them? It had occurred to me that he may well have been seen but, would someone want to take him on knowing what he was capable of?
Armed with just a trucheon or nothing at all, in a dark dank corner of some secluded square, Buggered if I'd take a mad Man on! Just a thought😳