RHOSLC star Mary Cosby questioned by police over son’s alleged violent attack weeks before his death

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• What police asked Mary Cosby during the January interview
• Allegations made by Alexiana Smokoff and the original report
• What Robert Cosby Jr. told police about that night
• Charges, probation and court-ordered requirements
  • Key legal points
• Sequence of events in the weeks before the death
• How this matters for the family and the public record

Producers and fans of reality TV were jolted again when new details emerged about the final weeks of Robert Cosby Jr.’s life. Police records show investigators spoke with his mother, Mary Cosby, days before his death about a past domestic dispute involving his ex-wife. The exchange raises fresh questions about substance use, alleged violence, and the events that preceded a fatal overdose.

What police asked Mary Cosby during the January interview

Records indicate Salt Lake City officers met with the Real Housewives of Salt Lake City star on Jan. 9, 2026. Investigators were gathering information related to a claim of domestic violence between her son and his former wife.

• Mary said she did not recall witnessing physical fights between Robert Jr. and Alexiana Smokoff.
• She acknowledged the couple argued verbally but insisted she had not seen injuries on either person while they were at her home.
• She denied that her son had a violent temperament, telling officers he was not raised to be aggressive.

Mary also described a separate incident in which Robert Jr. and another individual jumped from a balcony while under the influence. That anecdote underlined concerns about substance use in the household.

Allegations made by Alexiana Smokoff and the original report

Police documents show Smokoff contacted authorities on Nov. 23, 2025. She alleged an assault that she said occurred in May 2024, at a residence in Utah linked to the Cosby family.

• Smokoff claimed the confrontation began after she flushed Robert Jr.’s drugs, saying she had reached a breaking point with his use.
• The complaint was filed months later, while Robert Jr. was in custody on separate matters.

The account led investigators to seek statements from several people close to the couple, including Mary Cosby and Robert Jr. himself.

What Robert Cosby Jr. told police about that night

While in custody, Robert Jr. spoke to investigators about his memory of the alleged incident. He admitted to using fentanyl and said his recollection was incomplete.

• He confirmed he had told his mother he had been physical with his then-wife.
• Robert Jr. described episodes of psychosis and periods when he acted erratically.

Those admissions appeared in the police log and were cited during subsequent legal proceedings.

Charges, probation and court-ordered requirements

In the final weeks of his life, Robert Jr. faced multiple legal actions tied to domestic allegations and other violations.

Key legal points

• He spent two months in jail for violating a pretrial protective order connected to Smokoff.
• Upon release on Feb. 3, 2026, the court imposed 24 months of probation.
• Conditions of release included 75 hours of community service and participation in substance abuse and anger management programs.

Just two days after his release, on Feb. 5, prosecutors filed new felony counts against him. Those included aggravated assault and simple assault charges stemming from recent allegations.

Sequence of events in the weeks before the death

A rapid succession of legal and personal crises marked February.

1. Feb. 3 — Robert Jr. released from custody under probation terms.
2. Feb. 5 — New felony assault charges were filed.
3. Feb. 23 — Officers responded to a reported overdose that became a death investigation. Robert Jr. was later found dead.

Investigators have tied fentanyl use to at least one prior incident mentioned in police interviews. The young man had been open about drug struggles on the reality show, and those struggles surfaced repeatedly in official records.

How this matters for the family and the public record

The newly disclosed interview with Mary Cosby adds detail to an already complex and tragic story. The exchange shows law enforcement sought family perspectives while building a case.

• Mary’s statements emphasized she did not witness physical abuse at her home.
• Smokoff’s report alleged a violent episode months earlier after a dispute over drugs.
• Robert Jr.’s admission of fentanyl use and partial memory gaps complicated investigators’ efforts to piece together what happened.

Authorities continue to review reports and interviewees as they reconcile accounts surrounding the alleged assault and the circumstances that led to the February overdose investigation.