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Homicide investigation

Hemisfair homicide: new video appeal follows Hardeman’s September booking

SAPD’s September 29 appeal concerns the August death of Jonathan Alderete. We checked Isean Eugene Hardeman’s existing murder booking and the dates behind it.

Isean Eugene Hardeman’s booking photograph associated with booking B202635878
Isean Eugene Hardeman, from our public-record collection. This is the photograph associated with his September 3 booking; it is not an image identifying the person sought in the new video appeal.

A new appeal in the August 30 investigation

San Antonio police released surveillance footage September 29 showing an unidentified person of interest in the investigation into Jonathan Alderete’s death, KSAT reported. The station said the video shows that person at a downtown Denny’s about an hour before the shooting.

Alderete, 35, was shot at Hemisfair on August 30 and later died at a hospital, according to KSAT’s account. The station reported that Hardeman, 23, had already been arrested and that police alleged a confrontation involving a basketball. The new appeal does not identify the person in the footage as Hardeman.

Read KSAT’s report and view the released footage ↗

What Hardeman’s jail entry records

The public county entry for Isean Eugene Hardeman lists booking B202635878 and a murder charge. Its arrest date is September 2, while its booking date is September 3. The charge identifies SAPD as the arresting agency, lists August 30 as the alleged offense date and carries warrant number 2026W10258107.

We matched that entry to the existing photograph and booking already published in our archive. SID 1229249 is the county’s person identifier; B202635878 identifies this booking. The new reporting is attached to that existing event.

County booking dates, charge and warrant entry ↗

The investigation and the court record

At our September 29 check, the jail entry displayed no release date or charge disposition. That describes the fields available at the time of review; it does not establish a verdict or guarantee present custody. Hardeman is presumed innocent unless proven guilty in court. The video appeal is a separate investigative development, not a new booking or a finding of guilt.

Source notes

We checked the county jail entry directly late on September 29, 2026, Central Time, and matched the booking number, full name, date and murder charge to our existing record. The video appeal and account of Alderete’s death are attributed to KSAT’s September 29 reporting. We have not independently obtained the arrest affidavit or identified the person in the newly released video.

This article reflects the reporting available on September 29, 2026. Later developments should be read with their own dates and sources.