A retired Army lieutenant general who led the military response after Hurricane Katrina says searches can take a long time because human remains can be trapped under debris that must be removed piece by piece.

Col. Freeman Martin with DPS said that UNT will test DNA samples collected by the Texas Rangers to identify flood victims.

Bodies recovered from the Texas Hill Country floods will be sent to the University of North Texas in Fort Worth for identification.

It's not the only string of cases in recent years tethered by DNA matches. The DNA from a man serving a sentence in a California detention facility has been connected to an October 2018 attempted sexual assault and kidnapping incident in East Austin, according to documents obtained by KVUE.

At least 161 people remain missing in Kerr County, Texas, as authorities and volunteers search the Guadalupe River for victims.

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DNA evidence found a connection between an man incarcerated in California and an attempted sexual assault from 2018, according to court documents.

The US Supreme Court ruled in a 6-3 decision Thursday that a Texas death row inmate has the right to sue over the state's laws governing DNA testing. The majority opinion was written by Justice

A man whose remains were found in Tarrant County in 1987 has been identified using DNA technology more than 37 years after his death, according to a news release from Texas DNA lab Othram.

Emergency services are continuing a frantic search to find those missing - including between 23 and 25 girls from a camp hit by the flooding. The children were among more than 700 who were at Camp Mystic, a Christian summer camp along the river, when the fast-rising floodwaters hit.

Captain Frank Kent from the Aransas Pass Police Department said the bod was sent to Dr. Rey Fernandez's Office in Corpus Christi for a possible DNA match. Captain Kent said the body was difficult to recognize and continue to investigate.

Follow for live updates in the Texas flooding as the death toll rises to 120, as rescue operations start to shift to recovery phase