The Tragic Timeline: Everything To Know About Mary Cosby's Son, Robert Cosby Jr.'s Legal & Personal Turmoil

Contents
The latest news surrounding Mary Cosby’s son, Robert Cosby Jr., is both shocking and deeply troubling, reflecting a turbulent chapter in the life of *The Real Housewives of Salt Lake City* (RHOSLC) star's family. As of December 2025, the 23-year-old is facing serious legal repercussions following a plea deal that has cast a harsh spotlight on his private struggles, including substance abuse and a volatile marriage. This article compiles the most recent and critical updates, detailing his legal charges, the end of his marriage, and his mother's candid commentary on his sobriety journey. The situation has been a major point of discussion for fans of the Bravo franchise, especially after Mary Cosby’s emotional and honest disclosures about her son's challenges on the show. Robert Jr.'s recent legal troubles culminated in a guilty plea to multiple charges, leading to a significant prison sentence that is set to keep him incarcerated well into 2026.

Robert Cosby Jr. Complete Biographical Profile and Legal Timeline

Robert Cosby Jr. is the only child of reality television personality Mary Cosby and her husband, Bishop Robert C. Cosby Sr. His life has been under intense public scrutiny due to his mother's unique marriage—she wed her late grandmother’s second husband—and his own appearances on *The Real Housewives of Salt Lake City*.

  • Full Name: Robert Cosby Jr.
  • Date of Birth (Approx.): c. 2002
  • Age: 23 (as of late 2025)
  • Parents: Mary Cosby (Mother) and Bishop Robert C. Cosby Sr. (Father/Step-Grandfather)
  • Marital Status: Separated; his wife, Alexiana Arian Smokoff, filed for divorce in November 2025.
  • Spouse: Alexiana Arian Smokoff (Filed for divorce)
  • Noteworthy Affiliation: Son of the First Lady of the Faith Temple Pentecostal Church.
  • Current Status: Incarcerated, serving a sentence until February 2026.

Robert Jr.’s legal issues came to a head in late 2025 following a series of arrests. The most recent and significant development is his guilty plea to a staggering eight charges, a move that legally solidifies the seriousness of his recent actions.

The Shocking Details of Robert Jr.'s Guilty Plea and Prison Sentence

In a major update that sent shockwaves through the RHOSLC community, Robert Cosby Jr. entered a guilty plea to eight criminal charges in late 2025. This legal action resolved a tumultuous period marked by multiple arrests and public drama.

The specific charges Robert Jr. pleaded guilty to are severe and paint a picture of escalating personal crisis. They include:

  • Assault
  • Criminal Trespassing
  • Violation of a Protective Order (Restraining Order)
  • Felony Property Damage
  • Biting an Officer (Misdemeanor)

The protective order violation was against his estranged wife, Alexiana Arian Smokoff, who had previously filed for a restraining order against him. The guilty plea resulted in a sentence that will keep Robert Jr. in prison until February 2026. This timeline confirms that his legal troubles are not minor and represent a significant period of incarceration and rehabilitation.

Mary Cosby has been candid about the difficult reality of her son's situation. In a surprising revelation, she referred to his arrest as a “blessing in disguise,” suggesting that the legal intervention forced him to confront his underlying issues, primarily his struggle with substance abuse.

The Divorce Filing: Alexiana Arian Smokoff Files for Separation

Adding to the complexity of Robert Jr.’s life, his wife, Alexiana Arian Smokoff, officially filed for divorce in November 2025, shortly after his most recent arrest for violating her protective order. This development marks the end of their marriage, which was a source of public curiosity due to their young age and Robert Jr.'s high-profile family.

Alexiana's filing for divorce came after she had already sought and obtained a protective order against Robert Jr., underscoring the severity of the issues within their relationship. The details of the divorce papers are currently sealed, but the public filing itself confirms the immediate and dramatic breakdown of their union amid Robert Jr.'s legal crisis.

The tumultuous relationship and subsequent divorce add another layer to the narrative of Robert Jr.'s struggles, highlighting the personal collateral damage caused by his addiction and legal troubles. The reality TV cameras of *The Real Housewives of Salt Lake City* have captured some of the tension, but the divorce filing brings a definitive, sad conclusion to this aspect of his life.

Mary Cosby's Candid Updates on Robert Jr.'s Substance Abuse and Recovery

Mary Cosby has been uncharacteristically open about her son’s battle with addiction, a narrative that has become a central and deeply personal storyline on RHOSLC. She revealed that Robert Jr. had struggled with substance abuse, including the use of Heroin, and had experienced suicidal ideation.

In the summer of 2024, Robert Jr. checked into a rehab facility for substance abuse treatment and was mandated to undergo random alcohol testing and a drug program as part of his early legal proceedings. Mary has described her son’s journey toward sobriety as a "hardcore" and difficult process, but one that has been ultimately necessary for his survival.

Despite the pain and public embarrassment, Mary remains hopeful. She has repeatedly stated that the current situation, including the incarceration, has been a necessary turning point. It has forced Robert Jr. to focus on his recovery and mental health, away from the toxic influences and environments that fueled his addiction. She has also mentioned that her husband, Robert Cosby Sr., is often "devastated" by their son's ongoing challenges, showing the strain on the entire family unit. The family is now focused on supporting Robert Jr. through his sentence and his long-term recovery efforts, with the hope that the February 2026 release date will mark a true fresh start.

mary cosby son
mary cosby son

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