Glenn Owen's Profile of Johnia Berry's Murderer

In part 3 of his series on Johnia Berry's murder, crime blogger Steve Huff recounts a criminal profile of the case done by Texas investigator Glenn Owen.

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The killer is a disorganized killer who knew Johnia in some way.
Disorganized killers are usually below average in IQ.
They kill in their own neighborhood.
They usually do not have transportation.
If they work they work low paying jobs.
They have usually been in some type of petty trouble before like theft or criminal mischief.
They usually have had some type of recent tragedy in their life, like death of a parent or divorce.
Disorganized killers are sloppy and not very smart, they leave a lot of evidence.
They get mad and kill.
Unlike organized killers they do not try to hide the body, they just leave them where they kill them.
The killer is a white male between the age of 18 to 23.
He likes to listen to rap music and dresses in baggy pants and wears a baseball caps "They call it sagging".
I think the connection could be with Johnia's work with troubled teens (juvenile delinquents).
I think sex was probably the motive, but Johnia fought and woke the room mate up.

According to an article I read about the case Johnia had been hit on by someone who disturbed her just a few days or weeks prior to her murder...

[This next part covers an incident described in Ellen Mallarnee's Metro Pulse article in which Johnia was menaced in the West Town Mall parking lot by two individuals in a black SUV as she was leaving her seasonal job at Zale's.]

I think the passenger in the vehicle is the same person who was hitting on Johnia [in Owen's opinion] he could be the killer.
The killer suffered a severe laceration to his hand probably caused by his hand slipping down the knife blade because it was wet with blood and slippery.
There was NO forced entry and the murder weapon was knife from the kitchen.
So Johnia knew her killer and let him in.
I do not suspect the room mate because he had defensive wounds to his hands and was stabbed in the face and chest.
He did not recognize the killer.
Doctors and hospitals should be made aware of the injury the killer probably sustained and his physicle description and date of the murder to see if anyone was treated that matches the description and suffered a severe laceration to the hand.
This killer is no stranger to the juvenile justice system...