Man, woman arrested for shooting man found dead on side of Atascosa County road, sheriff says

Atascosa County sheriff says they believe suspects robbed the victim

ATASCOSA COUNTY – A man and a woman have been arrested in connection with the death of a man whose body was found on the side of the road in Atascosa County.

David Castleberry, 25, and Clarissa Guillen, 21, both of San Antonio, have been charged with murder, Atascosa County Sheriff David Soward said in a news conference on Friday.

They are accused of shooting the victim, identified as Lucio Carmona, 25, of San Antonio, on Tessman Road, north of Pleasanton. They left his body on the side of the road and he was found on Tuesday, Soward said.

The suspects and victim were acquaintances and the shooting likely happened during a robbery, Soward said.

Investigators spoke with the victim’s family and learned that he was last seen with the suspects on Tuesday evening.

Deputies conducted surveillance on the man and woman and stopped them at a motel on Old Highway 90 west of San Antonio on Thursday. They were in a stolen vehicle, Soward said.

Castleberry was taken into custody for parole violation and a warrant on drug possession, and Guillen was taken into custody for a warrant on possession of a stolen vehicle. They were booked into the Atascosa County Jail on Thursday evening. Their bonds are set at $800,000.

Soward said they confessed to being involved in the fatal shooting. Their charges may be upgraded to capital murder pending the outcome of the investigation.

Some details about the incident are incomplete and the investigation is ongoing, he said.

Soward added that ACSO investigates between three and four homicides a year.

“We’re fortunate not to deal with this on a daily basis,” Soward said. “Things of this nature are tragic, and everybody has a family. It’s something... it’s going to hit someone real hard.”

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Rebecca Salinas is an award-winning digital journalist who joined KSAT in 2019. She reports on a variety of topics for KSAT 12 News.

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