Ballistic evidence links suspect in St. Louis teen’s death to earlier freeway shooting

Key points

Federal court documents indicate Willie Herndon is being investigated for a second roadway attack on Oct. 11, three days before the fatal shooting of Alyssa Wilson.

Investigators found a spent shell casing near the Oct. 11 incident that shares the same manufacturer as the casing from the Oct. 14 murder scene.

Herndon is charged with first-degree murder and armed criminal action; his wife, Taiya Herndon, is charged with hindering prosecution for driving him to an Illinois hotel after the attack.

Security footage showed Herndon exiting a white Buick Enclave to fire a single round into Wilson’s vehicle as she drove to a Halloween event at the St. Louis Zoo.

Herndon’s hotel room contained notebooks with handwritten notes about license plates and law enforcement personnel he believed were following him.

Background

This case follows the October 14 shooting of Alyssa Wilson, a high school student from Florissant, Missouri, who was killed while driving to a Halloween celebration. Our previous coverage noted that the Herndons, a couple from Arlington, Texas, were arrested in Illinois after investigators traced their vehicle using surveillance footage and license plate readers. The motive for the shooting remains unclear, as Wilson had no known connection to the suspects.

How outlets are covering it

NBC News and The Guardian both confirm the fatal shooting of Alyssa Wilson and the subsequent charges against the Herndons. However, NBC News provides new details regarding a federal complaint linking Herndon to an earlier, non-fatal shooting on Oct. 11. The Guardian emphasizes the emotional impact on the victim’s family, quoting her father Robert Hickman, while NBC News focuses on the ballistic evidence and the suspect’s prior criminal history. Both outlets agree that the motive is unknown and that Wilson had no ties to the defendants.

Why it matters

The link between two separate freeway shootings raises concerns about a potential pattern of violence by the suspect. The use of federal charges, specifically for being a felon in possession of a firearm, adds a layer of legal complexity to the state murder charges. The discovery of notebooks suggesting the suspect felt surveilled may provide insight into his mindset, though the motive for targeting Wilson remains unexplained.

What to watch

Willie Herndon is scheduled to appear in U.S. District Court in East St. Louis on Tuesday for a pretrial detention hearing. His preliminary hearing is set for Nov. 4. Taiya Herndon will appear for a bail hearing on Thursday, with her preliminary hearing scheduled for Nov. 19. Lab testing is ongoing to determine if the ballistic evidence definitively ties the two shootings together.