Man accused of killing wife in custody after 3-hours SWAT standoff, authorities say

Published August 23, 2026 9:08 PM EDT

A homicide suspect was taken into custody after an hours-long SWAT standoff in Deltona, the Volusia County Sheriff's Office reported. 

The suspect is accused of shooting and killing his wife in Altamonte Springs, police said. 

Hours-long SWAT standoff in car

What we know:

The standoff occurred in the area of SR 415 and Howland Boulevard on Aug. 23 as deputies said the man – identified as John Schmalz-Riedt, 65 – sat in his truck with a gun. 

After utilizing multiple resources including patrol, dispatch, investigations, SWAT, Bearcat, Rook, Air One, drone, K-9, negotiators, and VC3, VSO SWAT took Schmalz-Riedt into custody just after 8:30 p.m. – after three hours of negotiations, the sheriff's office said.

The incident prompted an area roadblock for hours.

No injuries were reported in the standoff.

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Standoff subject tied to homicide case

The sheriff's office confirmed that Schmalz-Riedt was tied to a homicide investigation, as Altamonte Springs police later confirmed that John Schmalz-Riedt was identified as a person of interest in the shooting death of his wife. She was found unresponsive and suffering from a gunshot wound in a home on Conrad Court at 3:15 p.m. earlier the same day. 

Crews provided medical aid, but she died at the scene, Altamonte Police said. 

List of charges

Schmalz-Riedt is being charged with second-degree murder and possession of a firearm by a convicted felon. He was taken to the Volusia Jail following the incident.

John Schmalz-Riedt, 65, faces multiple charges. (Credit: Volusia County Corrections)

What you can do:

Anyone with information on the shooting is asked to call ASPD at 407-339-2441 or place an anonymous tip to Crimeline at 800-423-TIPS
(8477).

The Source: Information in this article was provided by the Volusia Sheriff's Office. 

Volusia County News