Overview

Last reported contact: January 1, 1976

Last reported location: Napa County, California; later investigative reporting specifically identified the Calistoga and St. Helena areas.

Circumstances: Carl Alfred Eder was convicted of murdering Lois Pendergast and her four children in El Cajon in 1958. He escaped from the California Correctional Institution at Tehachapi in October 1974. A federal warrant followed. Investigators later received information placing him in Northern California, with his last reported contact occurring in Napa County in 1976.

Current status: His whereabouts after 1976 have never been publicly confirmed. No publicly verified arrest, death or identification of remains has resolved the case.

Key identifiers: Born June 30, 1942, in Rochester, New York; approximately 6 feet 2 inches tall; blue eyes; blond/receding hair when younger; scar on left hand between thumb and forefinger; abdominal surgical scar.

Known aliases: Charles Eder, Charles Harrison and John Wehee. Other historical missing-person material has also listed additional possible aliases.

Federal identification: FBI No. 144 932 D.

NamUs: MP14880.

California corrections reference: CDC #A51941.

Detailed Case Breakdown

Carl Alfred Eder: The California Killer Who Vanished After Escaping Prison

Carl Alfred Eder is a convicted murderer and prison escapee whose trail appears to have gone cold in Northern California in 1976. Nearly two decades earlier, at age 16, Eder murdered a mother and her four young children in El Cajon, California. After receiving life sentences, he eventually escaped from a California prison in 1974 and disappeared.

His last reported contact is associated with Napa County in 1976. Despite decades of searches, publicity and renewed interest in the case, no confirmed account has publicly established what happened to Eder after that time.

The Pendergast Family Murders

In November 1958, Thomas Pendergast encountered 16-year-old Carl Alfred Eder, a runaway from New York who was hitchhiking in California. Pendergast offered the teenager assistance and eventually allowed him to stay with his family in El Cajon while Eder tried to establish himself.

The arrangement lasted only several weeks.

On December 12, 1958, while Thomas Pendergast was away at work, his wife, Lois Pendergast, and their four children — David, 9; Thomas Jr., 6; Diane, 4; and Allen, 2 — were killed inside the family’s home.

Contemporary and later accounts state that Lois was shot and the children were killed with a knife. Eder subsequently told investigators that the violence began after he became angry with four-year-old Diane.

Thomas Pendergast returned from work that day and encountered Eder before discovering what had happened inside his home.

Carl Eder Is Captured

Eder fled but did not remain free for long. Police arrested him in the San Diego area two days after the killings.

He confessed and was subsequently convicted of the murders. Eder received two life sentences and entered the California prison system.

The FBI later described him as approximately 6 feet 2 inches tall, with a slim build, blond hair and blue eyes. Records also noted a scar between the thumb and forefinger of his left hand and a surgical scar on his abdomen.

The 1974 Prison Escape

By 1974, Eder was incarcerated at the California Correctional Institution in Tehachapi.

In October of that year, he escaped custody. Accounts of the escape state that Eder walked away from a minimum-security assignment and left behind a short note indicating that he believed he had served enough time and was leaving.

A federal arrest warrant was issued in Bakersfield on October 18, 1974.

The FBI subsequently sought Eder for interstate flight in connection with murder and warned that he should be regarded as armed, extremely dangerous and an escape risk.

The Trail Leads to Northern California

Eder apparently did not immediately disappear without a trace.

Records associated with his NamUs case give January 1, 1976 as his date of last contact and list Napa County, California, as the location. Other reporting on the investigation states that Eder was last seen during 1976 in the Calistoga and St. Helena areas of Napa County.

Investigators looked into Eder’s possible associations with motorcycle gangs and radical political groups active during that era. Reports have specifically mentioned possible connections to groups including the Venceremos organization and the Symbionese Liberation Army.

Those reported associations should not be interpreted as proof that any particular organization helped Eder escape or was responsible for his later disappearance. Much of that portion of the investigation was based on intelligence, informant information and theories explored by investigators.

Did Carl Eder Die After His Escape?

One of the enduring possibilities investigated by authorities is that Eder did not survive for many years after his escape.

In reporting about a renewed California Department of Corrections investigation, Agent Scott Webb said investigators considered the possibility that people Eder associated with after escaping may have killed him. An informant reportedly claimed that Eder had made violent statements, including a threat against then-President Gerald Ford.

That scenario has never been publicly established as fact, and no remains have been conclusively identified as Eder.

Other possibilities have included Eder leaving California, assuming another identity, traveling elsewhere in the United States, or leaving the country. Investigative information has connected him at various times with California, New York and other states, as well as possible travel outside the United States.

A Separate Mystery at the Pendergast Property

The case acquired another unusual chapter in 1976 when the body of an unidentified man was reportedly discovered on property associated with the Pendergast family.

Because Eder had escaped two years earlier, investigators considered whether the deceased man could have been him.

He was not.

The discovery generated speculation about whether there was some connection between the unidentified man, the Pendergast property and Eder, but no reliable public evidence has established that Eder was responsible for the man’s death or that the unidentified man was connected to Eder’s disappearance.

The Search Through the Decades

Eder’s case received national exposure after his escape. The FBI published his photograph, fingerprints and identifying information in fugitive notices and continued listing him years later.

He was also featured in television crime programming, including America’s Most Wanted and a brief Unsolved Mysteries fugitive alert.

California investigators periodically revisited the case. During a renewed search publicized in 2013, the California Department of Corrections reportedly offered a $20,000 reward for information leading to Eder’s arrest. Investigators said at the time that older cases were being reconsidered as forensic and DNA technology improved.

Latest Available Investigation Information

As of the latest publicly searchable information reviewed in September 2026, there is no confirmed public report that Carl Alfred Eder has been located, arrested, identified among unidentified remains, or legally confirmed dead.

NamUs-related records continue to identify him as Missing Person MP14880, with a date of last contact of January 1, 1976, in Napa County, California.

A major limitation for investigators has historically been the lack of known DNA and dental records in his NamUs information. Fingerprint information does exist: the FBI published Eder’s fingerprint classification and images in its fugitive material, providing investigators with another means of confirming his identity should a viable match emerge.

The most substantial publicly documented modern investigative push appears to remain the California Department of Corrections review publicized in 2013, when authorities said cold fugitive cases such as Eder’s were periodically reconsidered in light of improvements in forensic technology.

There is no reliable public evidence establishing whether Eder survived beyond the 1970s. If alive in September 2026, Eder, who was born June 30, 1942, would be 84 years old.

His disappearance therefore remains an unusual combination of an unsolved fugitive hunt and a missing-person investigation: authorities know why Carl Alfred Eder disappeared in 1974, but what ultimately happened to him after his reported 1976 presence in Northern California remains unresolved.

Very Brief Case Summary

Last reported contact: January 1, 1976

Last reported location: Napa County, California; later investigative reporting specifically identified the Calistoga and St. Helena areas.

Circumstances: Carl Alfred Eder was convicted of murdering Lois Pendergast and her four children in El Cajon in 1958. He escaped from the California Correctional Institution at Tehachapi in October 1974. A federal warrant followed. Investigators later received information placing him in Northern California, with his last reported contact occurring in Napa County in 1976.

Current status: His whereabouts after 1976 have never been publicly confirmed. No publicly verified arrest, death or identification of remains has resolved the case.

Key identifiers: Born June 30, 1942, in Rochester, New York; approximately 6 feet 2 inches tall; blue eyes; blond/receding hair when younger; scar on left hand between thumb and forefinger; abdominal surgical scar.

Known aliases: Charles Eder, Charles Harrison and John Wehee. Other historical missing-person material has also listed additional possible aliases.

Federal identification: FBI No. 144 932 D.

NamUs: MP14880.

California corrections reference: CDC #A51941.