Man convicted in Price Motel stabbing gets 70 years

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The latest court developments for the man suspected of fatally stabbing Deziree Martinez. STABBING DETAILS

Feb. 12, 2018

Vincent Mousseaux, 24, was sentenced to 70 years at the South Dakota State Penitentiary Monday for first-degree manslaughter.

On March 9, 2017, Mousseaux stabbed 30-year-old Deziree Martinez to death at the Price Motel on East North Street after an argument. Martinez was found with knife wounds on her face, chest, abdomen and lower extremities. There was blood splatter on the walls and ceiling.

Police say a third person was also in the motel room and attempted to stop Mousseaux by taking the knife away from him. Mousseaux then pulled out another knife, chasing that person out of the room.

According to the State's Attorney's Office, Mousseaux then turned around and re-entered the motel room. Police found him several hours later sitting outside a residence in the Robbinsdale neighborhood of Rapid City. His blood alcohol content was three times the legal limit.

Prosecutors say that during Mousseaux's 341 days in the Pennington County Jail, he assaulted a Pennington County deputy. Mousseaux pretended he was choking, causing the deputy to enter his cell. Mousseaux then hit the deputy and took his pepper spray, spraying the deputy.

Elizabeth Mousseaux, Vincent’s sister, also appeared in court to make a statement. She said her brother is "a very loving man” and has “struggled with alcohol addiction.”

She also spoke of his “neglectful and abusive childhood.”

Mousseaux will receive credit for his time already served. He will be released when he’s 93 years old.


Dec. 14, 2017

Vincent A. Mousseaux, 24, has pleaded guilty to first-degree manslaughter. Mousseaux appeared in court Thursday before 7th Circuit Court Judge Jeffrey R. Connolly to change his plea after reaching an agreement with prosecutors.

Mousseaux's sentencing hearing is scheduled for Jan. 16 at 1:30 p.m. There is no minimum sentence for the charge, but the maximum sentence is life in prison and/or up to a fine of $50,000.

Mousseaux's lawyer said his client has "strong family support" and may present two or three witnesses to speak on his behalf at his January court date.


Dec. 1

Vincent Mousseaux, 24, is expected to change his plea. He earlier pleaded not guilty to charges including first-degree murder, an alternative charge of second-degree murder and another alternative charge of second-degree aggravated assault.

Prosecutors allege that Mousseaux stabbed Deziree Martinez to death on March 8, before attempting to stab another person inside a room at the Price Motel.

Mousseaux returns to court on Dec. 14.


July 14

Vincent Mousseaux was in court Friday morning for a status hearing. The prosecution has announced that they are not seeking the death penalty.

With the evidence discovery phase nearing conclusion, a new status hearing has been set for Aug. 25. The prosecution hopes to have results from DNA tests by that date.


March 13

A bond of $500,000 cash has been set for a Rapid City man accused in last week's fatal stabbing at a local motel.

Vincent Mousseaux, 23, is charged with first-degree murder and an alternative count of second-degree murder in the death of Deziree Martinez. Police say the murder took place at the Price Motel on East North Street last Wednesday.

Mousseaux was arrested Thursday and appeared in court Monday. He is also facing alternate charges of aggravated assault after he allegedly attempted to stab another person in the motel room.

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