UPDATE: Austin man kills woman, truck driver before crashing stolen truck in downtown San Antonio

BEXAR COUNTY, Tex. (KTSA News) — The man behind the wheel of an 18-wheeler that crashed near the Pearl in San Antonio Tuesday has been charged with capital murder.

New Braunfels police say 32-year-old Sacramento Martinez of Austin had been in a previous relationship with 33-year-old Marisol Martinez.  She had a protective order against him from a family violence incident last year.

Police say Martinez shot and killed the woman, leaving her inside a black Ford Expedition on the side of Interstate 35 north of FM 306.  He then left the the area on foot, crossed the interstate toward the TA travel center near Conrads Lane.

Police believe Martinez then shot the driver an an 18-wheeler, later identified as 45-year-old Daniel Sieger of Mission, stole the truck, and sped away toward the highway.

The truck later crashed in the area of Austin Street and Casa Blanca in San Antonio, where Martinez left on foot and left the original driver dead inside.

San Antonio police found Martinez and brought him into custody, where they learned he had a warrant out of Travis County.

New Braunfels police later charged him with capital murder.

He is currently being held without bond in San Antonio, awaiting transfer to the Comal County Jail.  Additional charges may be pending.

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