Date: 04-02-2021

Case Style:

Case Number: 4:20-cr-00055-BMM

Judge: Brian M. Morris

Court: United States District Court for the District of Montana (Cascade County)

Plaintiff's Attorney: United States District Attorney’s Office

Defendant's Attorney:

Criminal Defense Lawyer Directory

Description: Great Falls, Montana murder charge criminal defense lawyer represented Defendant, Jason Avery Mattson, 30, who was charged with second degree murder and to kidnapping in Indian Country.

The government alleged that on March 3, 2020, law enforcement was called to the Blackfeet Indian Reservation after the discovery of a body, which showed signs of homicide. The body was identified as John Doe. An autopsy confirmed the manner of death was homicide, with evidence of blunt force injury.

In addition, the government alleged that on March 10, 2020, Mattson called Blackfeet Law Enforcement Services, confessed to killing John Doe and told dispatch he had a knife and a gun. While officers were responding to the residence, Mattson called again and told dispatch he was holding a hostage, identified as Jane Doe, at knifepoint. Mattson threatened to kill Jane Doe and held her hostage for about four hours before she was able to escape. Mattson was taken into custody.

Assistant U.S. Attorney Kalah Paisley is prosecuting the case, which was investigated by the FBI, Bureau of Indian Affairs and Blackfeet Law Enforcement Services.

18:1111A.F MURDER, SECOND DEGREE; Title 18 USC §§ 1153(a) and 1111
(1)
18:1201.F KIDNAPPING; Title 18 USC §§ 1153(a) and 1111
(2)

Outcome: 03/30/2021 34 MINUTE ENTRY for CHANGE OF PLEA HEARING for defendant JASON AVERY MATTSON held 3/30/2021 before Judge Brian Morris: AUSA Kalah Paisley, CJA Counsel Peter Landsiedel, defendant (in custody and appearing by video from Shelby), present. Government outlines Plea Agreement. Defendant S/T. Defendant answers questions from the Court. Indictment received and Defendant understands charges. Plea Agreement discussed. Defendant satisfied with counsel. Maximum penalties, constitutional rights and right to a jury trial stated. Sentencing process explained. AUSA states elements of offense and offer of proof; no objections. The only issue is on page 4 with regards to the fire. Allocution; Offer of Proof incorporated. Court grants motion to change plea. Defendant pleads GUILTY to Count 1 and 2 of the Indictment. Court finds Defendant competent, plea knowing and voluntarily made. Court accepts plea. PSR ordered. Sentencing set for June 24, 2021, at 11:00 a.m. Government moves for continued detention, no objections. Defendant will remain in custody. Hearing commenced at 11:05 a.m. and concluded at 11:57 a.m., (Court Reporter Yvette Heinze) (USPO: J. Heim and P. Jones) (Law Clerk: J. Brothers), (Hearing held in Great Falls) (MMS) (Entered: 03/30/2021)
03/30/2021 35 Order as to Jason Avery Mattson; Defendant having plead guilty to Counts I and II of the Indictment at a Change of Plea Hearing on March 30, 2021, accordingly, IT IS ORDERED that Sentencing is set for June 24, 2021 at 11:00 a.m. at the Missouri River Federal Courthouse, Montana. Signed by Judge Brian Morris on 3/30/2021. (TLO) (Entered: 03/30/2021)

Plaintiff's Experts:

Defendant's Experts:

Comments: