Today is the 30th Anniversary of "The Yogurt Shop" murders which occurred in Austin, TX on December 6th, 1991.
From Wiki...
"The
1991 Austin yogurt shop murders were an
unsolved quadruple homicide which took place at an
I Can't Believe It's Yogurt! shop in
Austin,
Texas, United States on Friday, December 6, 1991. The victims were four teenage girls: 13-year-old Amy Ayers (or Ayres), 17-year-old Eliza Thomas, 17-year-old Jennifer Harbison and Jennifer's 15-year-old sister Sarah. Jennifer and Eliza were employees of the shop, while Sarah and her friend Amy were in the shop to get a ride home with Jennifer after it closed at 11:00 pm. Approximately sixty minutes before closing time, a man who had tried to hustle customers in his queue was permitted to use the toilet in back, took a very long time and may have jammed a rear door open. A couple who left the shop just before 11:00 pm, when Jennifer locked the front door to prevent more customers entering, reported seeing two men at a table acting furtively.
Around midnight a police patrolman reported a fire in the shop, and
first responders discovered the bodies of the girls inside. The victims had been shot in the head; some had been
raped. A
.22 and a
.380 pistol were used to commit the murders, and the perpetrator(s) probably exited out through a back door that was found unlocked. The organized method of operation, ability to control the victims, and destruction of evidence by arson pointed to an adult experienced in crime rather than teenagers, according to one of the original detectives on the case.
Austin Police Department has DNA from an unknown male as a result of one of the rapes.
[1] A Y-chromosome match for the perpetrator DNA has been found in a research database of the
Federal Bureau of Investigation (FBI) but it has declined to reveal the identity of the man in accordance with the law of anonymity for donors, and because thousands of men could bear this fragment of DNA, which is unable to identify individuals."
Heinous crime.
I don't quite get the FBI thing.
But at this point I would think the DNA could be sent to one of the DNA analysis centers used in conjunction with other cold crimes that have been solved.