Alejandro Castaneda, 19, was shot and killed late on October 10, 2025, while standing in the driveway of a home on the 35700 block of North Wilson Road in Ingleside, Illinois, where he had been attending a birthday party. Deputies arrived about 11:15 p.m.; life‑saving efforts failed and the Lake County Coroner identified him as dying from a gunshot wound to the chest. Authorities said the shooting began after an argument erupted between two groups near the end of the driveway.

The group that left then drove past the home and opened fire toward the crowd, striking Castaneda before fleeing. Witnesses and partygoers helped piece together the sequence of events and early alerts described the incident as a drive‑by attack. Investigators traced a suspect vehicle to 18‑year‑old Yurem Mejia‑Gomez of Round Lake Beach, recovered a firearm after an explosive‑detection K‑9 alerted on a car, and prosecutors approved charges including two counts of first‑degree murder and aggravated discharge of a firearm; Mejia‑Gomez was taken into custody and a judge ordered him detained pending trial.

Authorities say the investigation remains active and have not announced charges for other participants; anyone with information is urged to come forward.