Who Killed Matt Flores? Ford Explorer, Suspects, Cold Case

No one knows who killed Matt Flores. The 26-year-old Army veteran and new Applied Materials engineer was shot once in the back of the head in a Santa Clara, California, parking lot on the morning of March 24, 1994, and more than 30 years later the Santa Clara Police Department has never identified a suspect or confirmed a motive. A $100,000 reward offered by Applied Materials is still active.¹

What Happened That Morning

At about 8:15 a.m., Flores pulled into the lot at Applied Materials Building 12, 3225 Oakmead Village Drive, driving a rented white 1994 Chevrolet Corsica the company had provided when he relocated to California.²³ Police believe he had just stepped out and was leaning back in to grab his jacket when the gunman shot him once at point-blank range with a large-caliber handgun loaded with a silver-jacketed hollow-point bullet. He was pronounced dead at the scene. Sgt. Mark Kerby of the Santa Clara Police Department called it an “execution.”⁴

More than 20 people were in the lot. A female coworker in a nearby car heard the shot and called 911. The scene itself produced almost nothing: no shell casing, no signs of a struggle, no physical evidence.⁵ It was Flores’s ninth day on the job.

The Ford Explorer on the Surveillance Tape

The shooting itself happened in a camera blind spot. But security cameras elsewhere in the lot captured what remains the strongest lead in the case: a two-door Ford Explorer Sport, built between 1991 and 1994, with distinctive black trim on its lower body panels.⁵ By 1994 the Explorer was one of the ten best-selling vehicles in the country, so the model was not rare.⁶

The footage shows a pattern that looked, to investigators, like stalking. The Explorer entered the lot roughly 20 minutes before the shooting and backed into a stall facing the camera. A white two-door Ford Probe then drove down the lane Flores would later use. The Explorer pulled out and followed the Probe, which resembled Flores’s white Corsica. It left the lot, returned about three minutes before the shooting, drove toward where Flores was killed, and left for the final time 20 seconds after the murder. Sgt. George Teal of the Santa Clara Police Department said anyone watching the footage “could say the vehicle was stalking Matt that morning.”⁵

The brief chase of the Probe is also what raised the possibility that the killer picked the wrong white car.⁷

Who Matt Flores Was

Flores grew up in Rhode Island, graduated from Rhode Island College on an ROTC scholarship with a mechanical engineering degree, and finished first in his class at Officers Basic Training at Aberdeen Proving Grounds in Maryland.³⁸ He deployed to Saudi Arabia in December 1990 with the 24th Infantry Division, was promoted to first lieutenant in 1992 at Fort Stewart, and later moved to the 924th Aviation Support Battalion at Hunter Army Airfield. He was discharged from active duty just ten days before his death.⁴

Applied Materials hired him in February 1994 as a field process engineer, with plans to train him in Santa Clara before transferring him to Dallas. He and his wife, Denise, and their infant daughter, Danielle, had just moved west.⁵⁹ He had no history of drugs, gambling, or any of the ordinary friction that produces targeted violence. His wife described him as “loving and generous and honest” and “full of drive and ambition.”⁴ That ordinary-looking life is a large part of why the case has stayed open: investigators have never found a reason anyone would want him dead.

The Theories Investigators Worked

Mistaken Identity

The Explorer’s pursuit of the wrong white car gave weight to the idea that the killer intended to shoot someone else and mistook Flores’s Corsica for the target. Sgt. Teal acknowledged the theory, and coworker Gary Robertson also raised it.³ If true, there would be no personal link at all between killer and victim, which would make the case nearly impossible to crack.

A Workplace Motive

Family and coworkers wondered about professional jealousy, whether from someone inside Applied Materials or a rejected candidate for the same role.⁵ Flores had been there about a week and a half, which made that hard to picture. Applied Materials later uncovered an internal spy ring in 1995 involving stolen technical drawings, but coworkers noted Flores was too new to have had access to anything sensitive.³

Sgt. Nicholas Gange

At Fort Stewart, Flores had reassigned Sgt. Nicholas A. Gange out of the Electronics Maintenance Section to barracks manager for performance reasons, a move peers described as a non-disciplinary way to let Gange save face.³ Gange went AWOL on April 27, 1993. Ten months later, two weeks before Flores left Georgia for California, a forester found Gange’s skeletal remains in woods about a mile from the base.¹⁰

The cause of Gange’s death was never settled. An Army Criminal Investigation Division agent initially reported preliminary autopsy results consistent with a blow to the head. The final Armed Forces Institute of Pathology report did not mention a skull fracture; it documented fractures to multiple ribs, a sternum, and six vertebrae, and concluded death “most likely occurred as the result of blunt force trauma resulting from a forceful blow to the chest.” The manner of death was listed as undetermined. Asked about the discrepancy, an Army special agent said: “No comment then, no comment now, no comment ever.”¹⁰ Santa Clara detectives George Teal and Brian Lane spent two weeks in Georgia interviewing people connected to both men, searching a home, and pulling phone records between Fort Stewart and the Bay Area. Staff Sgt. Mark Hoyle, a friend of Gange, speculated Gange had “saw something he shouldn’t have seen or heard something he shouldn’t have heard.” Gange’s father, Hugo, believed the two deaths were connected. Soldiers who served with Flores said they knew of nothing linking them.

The Stepfather’s Past

Flores’s stepfather, Mike Mauro, was a Rhode Island juvenile corrections officer who had held several police jobs in Providence and acknowledged associating with mobsters in his youth. He worried someone might have targeted Flores as a message to him and went through his old files looking for vendettas, finding none. Sgt. Randall Paulhus of the Rhode Island State Police, who had worked with Mauro and helped Santa Clara detectives, said he did not believe Mauro “has ever been involved in anything that could come back like this.”³ Mauro himself doubted anyone with a grudge against him could have tracked Flores across three states.

The Missing Service File

The Army’s National Personnel Records Center in St. Louis reported it could not locate Flores’s service file and could not say whether the file had been misplaced, removed, or destroyed.³ Family members speculated it meant intelligence work or something hidden in his record. No evidence has ever surfaced to support that.

Where the Case Stands

Santa Clara police conducted nearly 1,000 interviews, processed 2,500 questionnaires, and spent more than $100,000 on the investigation in the years after the shooting.¹¹ They worked the Georgia angle, the Rhode Island angle, and the Applied Materials angle. No eyewitnesses to the shooting were ever found. No suspect was ever named.

Flores’s mother, Ellen Mauro, lobbied the FBI, members of Congress, and former U.S. Attorney General Janet Reno. She consulted psychics. Nothing broke the case. “I spent more than five years going everywhere and anywhere to anyone who I thought could help,” she said, “and all I would get were doors slammed in my face or letters saying, ‘We can’t help you.'”¹²

Applied Materials’ $100,000 reward for information leading to an arrest and conviction remains in place.¹ Santa Clara Police Chief Michael Sellers has said detectives are still looking for leads. Anyone with information can contact the Santa Clara Police Department’s cold case unit at 408-241-9495.²

1
San Jose Inside. $100,000 Reward Renewed for Santa Clara Cold Case Murder
2
East Bay Times. Matt Flores Killing: A 22-Year-Old Santa Clara Mystery
3
East Bay Times. From the Archives: Death in a Public Place — The Killing of Matt Flores
4
Providence Journal. From the Archives: The Murder of Matthew Flores, Part 1
5
Unsolved.com. Matt Flores
6
MotorTrend. 1991–2010 Ford Explorer Generations
7
CBS News San Francisco. Santa Clara Police Revisit Cold Case Still Unsolved After 17 Years
8
Providence Journal. From the Archives: The Murder of Matthew Flores, Part 2
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Providence Journal. From the Archives: The Murder of Matthew Flores, Part 3
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Providence Journal. From the Archives: The Murder of Matthew Flores, Part 4
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Providence Journal. From the Archives: The Murder of Matthew Flores, Part 4
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Mercury News. Santa Clara Murder Still Haunts Family 15 Years Later