Investigation
On April 14, Robert William Fisher, who disappeared at the time of murders, was named as an official (and to date only) suspect of the case on April 14, 2001 when Arizona Department of Public Safety officers were instructed in a statewide bulletin to arrest him.
On April 20, the last physical evidence of Fisher's whereabouts surfaced, when police found his Toyota 4Runner and his dog "Blue" in Tonto National Forest, a hundred miles north of Scottsdale.
On July 19, 2001, an Arizona Superior Court state arrest warrant was issued at Phoenix, charging Fisher with three counts of first-degree murder and one count of arson. Subsequently, Fisher was declared a fugitive, and a federal arrest warrant was issued by the United States District Court for the District of Arizona, charging him with unlawful flight to avoid prosecution.
On June 29, 2002, he was named by the FBI as the 475th fugitive to be placed on the Ten Most Wanted list. He is also on the America's Most Wanted "Dirty Dozen" list of that show's most notorious fugitives. The FBI offers a reward of up to $100,000 for information leading to his capture.
As of April 2003, FBI had received "hundreds and hundreds of leads". However, all sightings of Fisher have been inconclusive or false.
In February 2004, an individual with a striking physical resemblance to Robert Fisher was arrested in Vancouver, British Columbia by the Royal Canadian Mounted Police. Fingerprints eventually confirmed that the man was not Fisher. He was held by Canadian police for approximately one week until a family member correctly identified him.
In April of 2012, authorities announced that they believe Robert Fisher may still be located in Arizona.
Fisher is considered armed and extremely dangerous and has ties to Florida and New Mexico. He has been speculated to have committed suicide or started a new life under an assumed identity. FBI agent Caldwell's sense of Fisher's personality and habits is that Fisher is "arrogant. He's cocky. He's a know-it-all... And a loner." Fisher uses chewing tobacco and favors the Copenhagen brand; sometimes walks in an odd, erect manner with his chest out due to back pain and is an avid hunter and fisherman."
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