Police agencies across the Phoenix metropolitan area have investigated at least seven separate incidents identified as murder‑suicides since March 30, authorities say. The cases have unfolded in multiple jurisdictions across the Valley, touching cities including Mesa, Phoenix, Glendale and Surprise. Reported victims have included spouses, children and people with no familial ties to their alleged attackers, creating a string of scenes that have drawn detectives, crime‑scene technicians and community concern.
Glendale police vehicles and crime-scene tape at a residential street where officers responded — one of several Valley scenes tied to recent Phoenix-area murder-suicides.
Scenes tied to those investigations have frequently featured police tape and patrol vehicles as evidence technicians comb for clues. In at least some of the cases, the locations included family residences; in others, authorities reported victims who were not related to the person who carried out the attack. The geographic spread has underscored that the recent incidents are not confined to a single neighborhood or precinct, but rather have arisen across separate communities and multiple law‑enforcement agencies.
Mesa police cruisers with emergency lights and police tape at a nighttime scene; Mesa is among the Phoenix-area cities that have reported recent murder-suicide incidents.
Speaking on a local true‑crime program this week, John Delatorre, a forensic psychologist, offered his perspective on what may link some of the incidents. Delatorre suggested that in multiple cases the person who carried out the killings may have initially planned only to take their own life but did not follow through with that act alone. Instead, he said, the individual turned outward, committing violence against others before dying by suicide — a sequence Delatorre described as an attempt to avoid post‑crime consequences.
Delatorre framed that pattern as one through which the perpetrator’s intent shifts from self‑directed harm to lethal harm against others, followed by a self‑inflicted death. He said this shift can be motivated by a desire to escape accountability for the act of killing, adding that the presence of suicide in the plan can change the nature and timing of the violent act. Those observations were offered as a possible explanation for similarities he has seen across several of the recent Valley scenes, though he stopped short of asserting that every case fits the profile.
Beyond that line of reasoning, Delatorre highlighted what he called a contagion effect — the idea that seeing others carry out murder‑suicides can lower psychological barriers and make similar actions appear more attainable to vulnerable individuals. “It’s this weird phenomena where when someone sees someone else do an act, so therefore they believe themselves now OK, they have given themselves the green light to engage in a very similar act. So mass murders we see like this. Suicides we often see like this where there’s this element of a contagion effect, it just kind of spreads out,” he said during the program.
Delatorre, who works in forensic psychology, also cautioned against interpreting the recent string of incidents as evidence of a long‑term upward trend in murder‑suicides. He said there is no clear indication that the overall number of murder‑suicides is rising, noting that clusters or temporary increases are not uncommon and can occur even when there is no sustained change in the underlying rate of such events. His comments framed the recent uptick as potentially episodic, rather than the start of a broader escalation.
Law‑enforcement agencies have continued to investigate each scene independently, treating the cases as discrete criminal matters to be examined on their own facts. Detectives gather evidence, interview witnesses and work with forensic experts to determine timelines, motives and connections, if any, between the incidents. While investigators have not identified a single cause linking the recent murders and subsequent suicides, the pattern — multiple fatal incidents over a relatively short period — has prompted attention from both police and mental‑health professionals seeking to understand the dynamics behind such violence.
Delatorre’s remarks came amid renewed public attention as authorities released information about separate investigations around the Valley. He appeared on the local true‑crime program to discuss behavioral patterns and what mental‑health and criminal‑justice professionals look for when multiple, similar incidents occur in a region. While he offered theories about planning, motive and the possible role of contagion, he reiterated that each case must be evaluated individually and that definitive conclusions rest on the evidence developed by investigators.
As police continue to work their cases, officials have reiterated that they will not discuss specific investigative details that could compromise ongoing work. Crime‑scene photographs, witness statements and forensic findings typically remain under review until prosecutors decide whether to file charges and courts require public disclosure. For now, the Valley’s recent cluster of murder‑suicides has placed questions about motive, planning and public influence at the center of both criminal probes and broader conversations about how such tragedies unfold.
Phoenix police identified victims in a July 1 north Phoenix apartment case as estranged couple Alyssa Ann Sydow-Hoffert, 42, and Henry Arthur Sydow-Hoffert, 59, with the man having shot his wife multiple times before suicide. AZFamily reported it as the third suspected murder-suicide in the Valley in under a week, with each incident still probed independently by authorities.
Glendale police have publicly identified victims in multiple April incidents: on April 18 officers found a man and woman dead at an apartment complex and later identified the couple as 54‑year‑old Jason Magaard and 52‑year‑old Tanya Rickman, in what investigators classified as a murder‑suicide.
On April 23 Glendale police named two people found shot to death inside a mobile home at the Belaire Manor community as 33‑year‑old Ana Karen Osorio and 36‑year‑old Albaro Rodriguez; police said the two had been previously married and described the scene as a suspected murder‑suicide.
In a May 25 incident that prompted a multi‑agency response, Phoenix and Glendale investigators say 38‑year‑old Andrea Clarice Davis shot and killed her two children — an 18‑month‑old, Andolan, and a 10‑year‑old, Austin — and then died by suicide after a related shooting outside a Glendale bar; authorities said the children’s father, Nolan Davis, had earlier been contacted by officers at the bar.
Police in Peoria reported on June 1 that Jackson Berry, 31, was found shot and stabbed in a Vistancia neighborhood and that the suspect, identified as his 25‑year‑old nephew Jet Dudran Berry, fled, drove toward Payson and later died of a self‑inflicted gunshot after a crash and pursuit.
A May 25 news release from the Marana Police Department identified a murder‑suicide near Silverbell Road in which 36‑year‑old Mikaela Durfey was found dead near her home and 37‑year‑old Brian Schnurr, described as her ex‑husband, was later located dead of an apparent self‑inflicted gunshot; officers reported two children under age 4 inside a vehicle near the scene who were unharmed.