If There Were Multiple Killers Wouldn't We Expect to See More Killings?

[Errata]

Hello Errata. Thanks.

Actually, the good point about math is that it is based on fixed rules. They never vary. And no rot about population samples--as in stats.

Cheers.
LC

Statistics are arrived at through many methods. But at some point, a calculator comes out, and that when I get cold sweats of fear.

I think my favorite was a study done about defensive gun use, where the sociologist polled 500 people in North Florida, and then just multiplied the percentages by the population of the US. Which is where the rot that the NRA still peddles about 80% of gun owners using their weapon to defend themselves comes from. Because swamp folk from North Florida totally represent the values and culture of the rest of the country.

But this is totally besides the point.

[lynn cates]

absolute

Hello Errata. Thanks.

Actually, the good point about math is that it is based on fixed rules. They never vary. And no rot about population samples--as in stats.

Cheers.
LC

[lynn cates]

In the good old summer time--not.

Hello Roy. Thanks.

"They get the whole summer off.

Like Lynn."

If only you knew! I have taught 125 classes in the last 5 calendar years. A good bit of that is summer teaching. Always glad when the autumn arrives.

Cheers.
LC

[Wickerman]

Urging people to study up on serial killers to better understand the Ripper crimes will only help mislead the next generation of Ripper students, its one reason the study "is a thousand times more confused that it was in 1888"..as my friend and very well informed researcher/author Simon Wood once said.

Sadly, since Profiling has reared its ugly head, Ripperology has gone to hell in a handbasket. The intelligence of those cold case serial killers has been so limited to the point of them being regarded as robots.
Not only can they no longer think for themselves, they must follow a script, good grief!

When you know at least 3 killers were around,...

I think the operative word is "know", if we knew one way or the other, there would be less debate.

Regards, Jon S.

[Errata]

Hello Errata. So you regard statistics as math? Very well.

Cheers.
LC

For a girl who switched between 4 art majors and 2 social sciences, statistics is math. So is counting. With or without fingers.

All numbers are math. And are to be regarded with suspicion. Because they can leap up and fail you at anytime.

[Roy Corduroy]

Most universities teach probability and statistics in the math department. And, if you failed algebra, you aren't going to do well with statistics. Stats & probability is a complex discipline that includes logic, but math as well. A course called "finite math" was require before you could take stats at my university. In finite, you spend a couple of days just on Venn diagrams.

Yes I took finite math. That's what you took for a business degree instead of going on to real college algebra and beyond. Then we took 'business calculus" otherwise known as baby calculus. And yes we hated our statistics teacher. Hated the ground he walked on. Because he made us think!

If I had it to do over, I would have gotten a degree in music education. Then I could be a band director, or what not. My schoolteacher friends, those dirty rats. They get the whole summer off.

Like Lynn. I bet he goes water skiing all summer long

Roy

[lynn cates]

math

Hello Rivkah. Thanks.

Yes, I had the three hour course in probability and statistics at university. Easy A. But I also studied real math.

Cheers.
LC

[Michael W Richards]

Urging people to study up on serial killers to better understand the Ripper crimes will only help mislead the next generation of Ripper students, its one reason the study "is a thousand times more confused that it was in 1888"..as my friend and very well informed researcher/author Simon Wood once said.

We have...and this is critical if anyone has any hope of ever answering any of the many questions they might have..... 5 unsolved murders that were assumed to be by one killer, certainly not proven by any evidence that any of us have ever seen,... we have a despicable killing that involves 2 weapons, and we have multiple killings of women who were then cut up leaving only their Torso's. All happening that Fall.

When you know at least 3 killers were around, and you know nothing about any of them, is it really wise to assume that you do know that one man killed all 5 women, despite the obvious differences in some victims, some locations and some injuries.

Fantasy vs Reality is an ongoing battle in Rippeology,... so its clear, in general, it is fantasy to believe that there is any proof that Jack the Ripper was a serial killer, as it would be to believe that the 5 women were killed by any individual. Sure...youre allowed to feel whatever you like about these cases, but to continually suggest serial murders without one single scrap of evidence to support it isnt really helping anyone learn anything.

All Im suggesting is look at the evidence in these cases, all some others are suggesting is that the answers lie in the data of serial killers in the modern era.

I prefer to look in the directions that the evidence suggests are probable, but to each their own I suppose. If its probable within serial killer dogma that a serial mutilator kills without even a mutilation attempt...then I guess I can see an argument for Stride. However, its not probable...its merely possible.

Cheers all

[RivkahChaya]

Hello Errata. So you regard statistics as math? Very well.

Cheers.
LC

Most universities teach probability and statistics in the math department. And, if you failed algebra, you aren't going to do well with statistics. Stats & probability is a complex discipline that includes logic, but math as well. A course called "finite math" was require before you could take stats at my university. In finite, you spend a couple of days just on Venn diagrams.

[lynn cates]

blame game

Hello (again) Jon.

"I blame modern profiling"

Ah! Now you're talking!

Cheers.
LC

[lynn cates]

compromise

Hello Jon. Thanks. I'll meet you half way. I DO think the klller of Kate was familiar with the investigation of the other two.

Cheers.
LC

[lynn cates]

stats

Hello Errata. So you regard statistics as math? Very well.

Cheers.
LC

[lynn cates]

solution

Hello CD. Thanks.

"how do we account for the differences in those "two near duplicates?"

Simple. The stimuli at the horse yards was different. Jacob seems very susceptible to such.

Cheers.
LC

[c.d.]

It has become increasingly clear to me that I am spending waaaaay too much time on these boards so I am going to take a long lie-down for awhile.

Everyone stay well while I am away.

c.d.

[c.d.]

Hello Rivkah,

My question was pretty much literal because I am not quite sure that I understand some of the arguments that are being put forth. Is there anyone suggesting that a killer who seemed to initially be targeting uteri or a kidney would not take a heart?

I also don't understand why a difference in facial mutilations becomes more important than the fact that both faces (Kate and Mary) were both mutilated.

As for a what are the odds argument, yes, it is rhetorical. Now I am going on the assumption that other people share the same view regarding the likelihood of an event taking place and that it would be highly unusual (but not impossible) for some events to take place, for example, for everyone in my apartment building to be born on the same day. But as I am finding out, much to my amazement, there are people who do not share my view on how the world operates.

c.d.