Man arrested in Waco February sexual assault case

Austin Zacharias Mattson booked into McLennan County Jail after investigation

Mar. 12, 2026 at 3:48pm

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Waco police arrested a 33-year-old local man, Austin Zacharias Mattson, following an investigation into a sexual assault that occurred in February. The adult female victim and the suspect knew each other, and Mattson was booked into the McLennan County Jail on Wednesday with his bond not yet set.

Why it matters

Sexual assault cases are serious crimes that can have lasting impacts on victims. This arrest highlights the importance of victims coming forward and the role of law enforcement in investigating these types of allegations promptly.

The details

According to police, the sexual assault occurred in the 400 block of Lottie Avenue in Waco. Authorities obtained a warrant for Mattson's arrest following an investigation that began earlier this month after the victim made an outcry to the Waco Police Department.

  • The sexual assault occurred in February 2026.
  • Waco police received the case referral earlier this month.
  • Mattson was arrested and booked into the McLennan County Jail on Wednesday, March 12, 2026.

The players

Austin Zacharias Mattson

A 33-year-old local man who was arrested and booked into the McLennan County Jail following an investigation into a sexual assault.

Waco Police Department

The law enforcement agency that investigated the sexual assault case and obtained a warrant for Mattson's arrest.

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What’s next

Mattson remains in the McLennan County Jail, and his bond has not yet been set as of Thursday morning.

The takeaway

This case highlights the importance of victims coming forward and the role of law enforcement in promptly investigating sexual assault allegations to hold perpetrators accountable and provide justice for victims.