AUSTIN (KXAN) -- After 30 years, Austin city leaders announced on Monday, Sept. 29 that the infamous Yogurt Shop Murders had been solved. Austin Police Chief of Police Lisa Davis said "advances in science and technology" allowed investigators to link Robert Eugene Brashers to the 1991 quadruple homicide.

Detective Dan Jackson with APD said that samples of Y-STR DNA found at the scene linked Brashers to another crime in South Carolina.

Y-STR examines short repeating DNA sequences only found in people with a Y chromosome. DNA testing to identify suspects was first used in 1990 in Germany.

Jackson said there are some limitations when using Y-STR for identification. It is not unique to only one individual and is "passed down paternally". Certain combinations of Y-STR occur more frequently,

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