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298 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.

Case Description

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Summary based on the NamUs case record (MP7066) and 1 other source
In the quiet suburbs of Scottsdale, Arizona, Robert Fisher, a 40-year-old surgical technician and avid outdoorsman, was last seen on the evening of April 9, 2001. At approximately 10:43 p.m., a security camera captured him withdrawing $280 from an ATM, with his wife's Toyota 4Runner visible in the background. This mundane transaction was the last confirmed sighting of Fisher before a horrific tragedy unfolded. Neighbors reported hearing a loud argument from the Fisher home around 10 p.m. that same night. In the days and weeks leading up to this, Fisher's wife, Mary, had reportedly told friends she intended to divorce him. Fisher had a history of controlling and violent behavior, and the marriage was known to be troubled.

The following morning, on April 10, 2001, an enormous explosion tore through the Fisher's house, engulfing it in flames. When firefighters were able to enter the destroyed home, they made a grim discovery. The bodies of 38-year-old Mary Fisher, and their two children, 13-year-old Brittney and 10-year-old Bobby, were found in their beds. An investigation revealed they had not died in the fire; all three had their throats slashed, and Mary had also been shot in the back of the head. Investigators believe Robert Fisher murdered his family, then pulled a gas line from the furnace and lit a candle to create a delayed explosion, giving himself a roughly 10-hour head start to disappear.

The search for Robert Fisher began immediately, with law enforcement naming him as the sole suspect in the triple homicide and arson. A crucial break in the case came on April 20, ten days after the murders, when Mary's Toyota 4Runner was discovered abandoned in the Tonto National Forest, near Young, Arizona. The family's dog, Blue, was found near the vehicle, but Fisher was gone. An extensive manhunt was launched in the rugged terrain, which included a complex system of caves that Fisher, a skilled survivalist, was familiar with. Despite the massive effort, no trace of him was ever found. For his crimes, Fisher was placed on the FBI's Ten Most Wanted Fugitives list in June 2002. He was removed from the list in November 2021, not because he was no longer a suspect, but because the extensive publicity over two decades had not led to his capture. Over the years, numerous tips and possible sightings have been investigated, but none have been confirmed. The case remains an active investigation, with the central question of whether Robert Fisher successfully created a new life under a different identity or perished in the vast Arizona wilderness still unanswered.

Last Seen: Apr 9, 2001

Links to Additional Sources (1)

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Possible Unidentified Matches (10)

Unidentified remains cases whose details are consistent with this person, ranked by how closely they compare. Fields that are unknown in either case are left out of the score.

80%Moderate
John Doe — Rio Verde, Arizona - unidentified case UP13861
John Doe — Rio Verde, Arizona
UP13861 • Found Apr 28, 2015
View case
Sex ✓Male
Age 100%Est. 50–65 vs 39 when missing
Race 100%White
Location 97%22 mi away, same county
TimingFound 14 years after last seen
Height 100%5'11" vs 6'0"–6'1"
Hair 100%Brown vs Brown
80%Moderate
John Doe — Phoenix, Arizona - unidentified case UP2040
John Doe — Phoenix, Arizona
UP2040 • Found Apr 19, 2003
View case
Sex ✓Male
Age 85%Est. 20–40 vs 39 when missing
Race 100%White
Location 100%7 mi away, same county
TimingFound 2 years after last seen
Height 84%5'10" vs 6'0"–6'1"
Hair 100%Brown vs Brown
80%Moderate
John Doe — Apache Junction, Arizona - unidentified case UP6405
John Doe — Apache Junction, Arizona
UP6405 • Found Jul 29, 2002
View case
Sex ✓Male
Age 85%Est. 25–45 vs 39 when missing
Race 100%White
Location 97%21 mi away, same state
TimingFound 16 months after last seen
Height 84%6'3" vs 6'0"–6'1"
Weight 68%250 lb vs 190–200 lb
Hair 100%Brown vs Brown
80%Moderate
John Doe — Phoenix, Arizona - unidentified case UP1971
John Doe — Phoenix, Arizona
UP1971 • Found Apr 7, 2001
View case
Sex ✓Male
Age 100%Est. 30–40 vs 39
Race 100%White
Location 99%13 mi away, same county
TimingFound same day as last seen
Height 52%5'8" vs 6'0"–6'1"
Weight 89%160 lb vs 190–200 lb
Hair 100%Brown vs Brown
Eyes 0%Brown vs Blue
78%Possible
John Doe — Phoenix, Arizona - unidentified case UP729
John Doe — Phoenix, Arizona
UP729 • Found Jun 16, 2006
View case
Sex ✓Male
Age 85%Est. 26–42 vs 39 when missing
Race 100%White
Location 100%10 mi away, same county
TimingFound 5 years after last seen
Height 100%6'0" vs 6'0"–6'1"
78%Possible
John Doe — Eloy, Arizona - unidentified case UP6332
John Doe — Eloy, Arizona
UP6332 • Found Sep 19, 2002
View case
Sex ✓Male
Age 85%Est. 35–55 vs 39 when missing
Race 100%White
Location 88%53 mi away, same state
TimingFound 17 months after last seen
Height 100%5'11" vs 6'0"–6'1"
Hair 50%Blond vs Brown
77%Possible
John Doe — Phoenix, Arizona - unidentified case UP819
John Doe — Phoenix, Arizona
UP819 • Found Aug 2, 2007
View case
Sex ✓Male
Age 100%Est. 35–50 vs 39 when missing
Race 100%White
Location 99%13 mi away, same county
TimingFound 6 years after last seen
Height 68%5'9" vs 6'0"–6'1"
Weight 84%155 lb vs 190–200 lb
Hair 60%Black vs Brown
Eyes 0%Brown vs Blue
77%Possible
John Doe — Arizona
UP2029 • Found Nov 23, 2003
View case
Sex ✓Male
Age 85%Est. 20–40 vs 39 when missing
Race 100%White
Location 94%32 mi away, same county
TimingFound 3 years after last seen
Height 68%5'9" vs 6'0"–6'1"
Weight 90%161 lb vs 190–200 lb
Hair 100%Brown vs Brown
Eyes 0%Brown vs Blue
77%Possible
John Doe — Phoenix, Arizona - unidentified case UP2034
John Doe — Phoenix, Arizona
UP2034 • Found Jul 27, 2003
View case
Sex ✓Male
Age 100%Est. 35–45 vs 39 when missing
Race 60%Hispanic
Location 100%10 mi away, same county
TimingFound 2 years after last seen
Height 100%6'0" vs 6'0"–6'1"
Hair 60%Black vs Brown
77%Possible
John Doe — Phoenix, Arizona - unidentified case UP2038
John Doe — Phoenix, Arizona
UP2038 • Found May 19, 2003
View case
Sex ✓Male
Age 60%Est. 40–80 vs 39 when missing
Race 100%White
Location 100%7 mi away, same county
TimingFound 2 years after last seen
Height 100%6'0" vs 6'0"–6'1"
Hair 100%Brown vs Brown

These comparisons are generated automatically from public NamUs case data and are not confirmed identifications. Only DNA, dental or fingerprint comparison by investigators can confirm an identity. If you believe two cases are connected, contact the agency handling the unidentified case.

Unidentified photos are blurred because many are post-mortem. Tap a photo to reveal it.