RUNGE, Texas – UPDATE (8:55 p.m./Sept. 24, 2025): Karnes County Crime Stoppers announced a $1,000 reward for information regarding the murder investigation and/or the whereabouts of Severiano Valdonado.
To report a tip, contact Karnes County Crime Stoppers at 830-780-4636 and reference KCSO Case #2025-14926. Tipsters will remain anonymous.
UPDATE (9:08 p.m./Sept. 19, 2025): The Karnes County Sheriff’s Office released the identity of a man deputies believe shot and killed a woman Thursday night in Runge.
Investigators said Severiano Valdonado, 38, left the scene of a home in the 800 block of Leckie Street after he allegedly shot Michelle Jannsen.
Authorities pronounced Jannsen dead at the scene.
Deputies said Valdonado is 5 feet, 9 inches tall, has brown eyes and black hair. He was last seen wearing dark-colored athletic shorts and is in “possession of a pistol,” according to KCSO.
The sheriff’s office said Valdonado should be considered “armed and dangerous.”
Anyone with information regarding Valdonado’s whereabouts is asked to contact KCSO’s Criminal Investigations Division at 830-780-3931.
Below is the original story from Friday afternoon.
ORIGINAL: The Karnes County Sheriff’s Office has opened an investigation into a murder on Thursday night, according to Sheriff Steven Bailey.
In a social media post, Bailey said deputies and first responders were dispatched on a shooting call just before 11 p.m. in the 800 block of Leckie Street, which is located in Runge.
When they arrived, the sheriff said they administered first aid to the victim, but she was later pronounced dead at the scene.
Bailey identified the victim as Michelle Jannsen. Jannsen’s age, cause and manner of death are still unknown.
According to Bailey, deputies believe the unidentified suspect fled before they arrived at the home.
The sheriff’s office, who collected unspecified evidence at the scene, said its investigation remains ongoing.
Anyone with information regarding Jannsen’s death is asked to contact KCSO’s Criminal Investigations Division at (830)-780-3931.
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