OPS concludes investigation into tragic Mandevilla Crescent deaths

FOR IMMEDIATE RELEASE: Tuesday, July 21, 2026  2:40 p.m. 

(Ottawa)—The Ottawa Police Service Homicide Unit has completed its investigation into the deaths of two young boys found at a Mandevilla Crescent residence on June 29, 2026.

Following an extensive investigation, investigators have concluded that the boys were killed by their father, 40-year-old Mohammed AL-LAMI, during the late evening of June 28 or the early morning hours of June 29. AL-LAMI subsequently intentionally set fire to his dental practice in Iroquois before dying by suicide in a vehicle near Kemptville.

Investigators established the following timeline:

  • June 27, mid-afternoon: AL-LAMI picked up the boys for his scheduled parenting time
  • June 28, evening: The boys were last known to be alive at the Mandevilla Crescent residence.
  • Late June 28 or early June 29: Investigators believe AL-LAMI killed both boys inside the residence.
  • June 29, early morning: AL-LAMI intentionally set fire to his dental practice in Iroquois before dying by suicide in his vehicle near Kemptville.

Investigators examined the three scenes, completed interviews, reviewed financial and digital records, and considered forensic and post-mortem findings. The evidence established that AL-LAMI acted alone. No other person is believed to have been involved, and there is no ongoing risk to public safety.

The investigation also identified a history of intimate partner violence and continuing conflict involving parenting arrangements and financial support. While no single circumstance can fully explain this violence, the evidence indicates that these issues likely formed part of the context leading to the deaths.

No criminal charges can be laid because the person responsible is deceased. The investigative findings have been shared with the boys’ mother.

“We recognize the profound impact these deaths have had on the boys’ family, friends, school communities, neighbours and everyone who was affected by this tragedy,” said Deputy Chief Patricia Ferguson. “Our investigators worked carefully to establish what occurred and to provide the family and the public with as complete an account as possible, while respecting the privacy and dignity of the children.”

At the request of their mother, the names of the boys will not be released publicly. We ask that their family’s privacy continue to be respected.

Anyone experiencing intimate partner violence, or concerned about someone they know, is encouraged to seek assistance. In an emergency, call 9-1-1. Support is also available through:

Assaulted Women's Helpline: 1-866-863-0511 (call), or text: #SAFE (#7233)

CHEO Sexual Assault/Abuse Care Program 613-737-7600 ext. 2939

Distress Centre of Ottawa and region: 613-238-3311

Eastern Ottawa Resource Centre: 613-741-6025

Fem-Aide: 1-877-336-2433

Kids Help Phone (youth): 1-800-668-6868 | Text: 686868 

The Ottawa Hospital Sexual Assault and Partner Abuse Care Program 613-798-5555 ext. 13770

Unsafe at Home Ottawa: WhatsApp or text (613) 704-5535.

Western Ottawa Resource Centre-GBV Program: 613-591-3686

Inuuqatigiit Family Support & Women’s Healing: 613-744-3133 

Talk4Healing Hotline (offered in Inuktitut): 1-855-554-HEAL 4325

Tungasuvvingat Inuit VAW Counselor and Advocate: 613-565-5885 

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