Jack the ripper...
Sloppiness in their killings, in the modern day, would also extend to leaving behind dna evidence.
Funnily enough "Ausfailia" wouldn't have taken your farm but your raised hackles should be a clear indication...
dude. so many things wrong with this assumption.
the assumption that there even was a "ripper' is entirely unproved, it could easily have been 2 or more unconnected raving nutbars.
the killings were only connected by female victims, mutilation, and some "letters" presumably sent to the local newspapers, but british newspapers of the time were hardly useful sources of factual information.
theres not even a convincing case to be made that the 5 most commonly attributed killings were done by a single person.
the state of forensic science at the time was pathetic, theres not enough evidence to make a case against anyone for even one of those murders. you might as well have thrown out the wendigo, Spring Heeled Jack, werewolves, vampires, or that escaped mental patient with a hook for a hand who always leaves his hook on the door handle of a teenager's car at Makeout Point.
when asked to name a disorganized serial killer you fart out jack the ripper?
dude, not even a good try.
edit: and dna evidence is a crock of shit. you been watching csi. probably the extra shitty csi miami.
more cases get solved by fingerprints and fiber evidence than dna.
usually dna evidence is used to prove the suspect (or convict) didnt do shit.