ANAHEIM – Investigators have arrested a man suspected of firing gunshots at a vehicle on the 91 freeway, leaving one man dead and another injured, authorities confirmed on Friday.

David Arzate Cabrera, 45, was arrested on narcotics charges on Thursday, then booked on suspicion of murder on Friday in connection to the death of Agustin Villegas, an Anaheim resident who was struck by gunfire while riding on the freeway, Anaheim police Lt. Bob Dunn said.

Authorities on Friday did not comment on what they believe to be the motive for the shooting or on whether they believe Cabrera was targeting Villegas, 32, or the other man injured by the gunfire.

The shooting occurred shortly after 8 p.m. on July 14 along the westbound lanes of the 91, just east of the 57 freeway.

The gunshots shattered the front windows of a white Ford F150, killing Villegas, who was sitting in the front seat of the pickup, and injuring his 42-year-old cousin, who was driving the vehicle.

The injured driver was able to pull the vehicle over at the gore point of the freeway.

Two boys, ages 13 and 15, who were sitting in the backseat of the vehicle were not injured. Authorities described them as the sons of Villegas and his cousin.

The shooting left investigators with no suspects, no clear indication where the gunshots were fired from and no motive for what was initially believed to be a random attack.

In the days after the shooting, authorities urged motorists to remain vigilant, and to report any suspicious activity to law enforcement.

Meanwhile, family members mourned the loss of someone they described as a devoted family man who ended up in the wrong place at the wrong time.

Villegas, a skilled mechanic who moved to Anaheim from Mexico more than a decade ago and had built up a loyal client base, was heading home for dinner after repairing a car in Anaheim when the shooting occurred, family members said. He was survived by his wife, Reyna, and their four sons.

Police did not comment on whether the weapon believed to be used in the shooting has been recovered. Dunn said investigators are still looking into the “mechanics” of the shooting, and could not confirm whether the gunshots were fired from another vehicle or from another location.

According to police, at the time of his arrest, Cabrera was suspected of possessing a controlled substance as well as a loaded firearm.

No other suspects are being sought in connection to the shooting, Dunn added.

Staff writer Scott Schwebke contributed to this report.

Contact the writer: 714-796-7939 or semery@ocregister.com