Arrest Reports and Laws

Tyviant Tilden Mancilla Arrested in Multnomah Oregon

Tyviant Tilden Mancilla was booked at 9:45 AM on Sunday, December 13th, 2020 by Portland Police, Other. Mancilla was booked into Multnomah County Jail in Portland, Oregon.

Multnomah County Mugshots -  Tyviant Tilden Mancilla

The 18 year old male was arrested for suspicion of the below crimes:

  1. FL PERF DOD SER INJ (B Felony)
  2. ATT MURDER II (A Felony)

  3. ATT MURDER II (A Felony)

  4. ATT ASSAULT I (B Felony)
  5. ATT ASSAULT I (B Felony)
  6. UNLAW USE WEAPON (C Felony)
  7. UNLAW USE WEAPON (C Felony)
  8. UNLAW USE WEAPON (C Felony)
  9. UUMV (C Felony)

Bail has been set to $20,000 for Mancilla which is listed as a 5 ft 8 in black male weighing approximately 220 lbs.

Tyviant Tilden Mancilla was arrested in Multnomah County Oregon and Tyviant Tilden Mancilla has a presumption of innocence which means that although the person was arrested, they are presumed innocent until proven guilty in a court of law. Presumption of innocence” serves to emphasize that the prosecution has the obligation to prove each element of the offense beyond a reasonable doubt (or some other level of proof depending on the criminal justice system) and that the accused bears no burden of proof. For more information in presumption of innocence, wikipedia is a great place to start.

This information is made available by the local sheriff’s office near Multnomah County Oregon. For more regarding the Multnomah County Sheriffs department you can visit their website. They can also be contact them at their Frequently asked Questions.

Oregon Sentencing Guidelines


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Below are the Oregon laws which may relate to this arrest:


Assault in the first degree.
(1) A person commits the crime of assault in the first degree if the person:(a) Intentionally causes serious physical injury to another by means of a deadly or dangerous weapon;
(b) Intentionally or knowingly causes serious physical injury to a child under six years of age;
(c) Violates ORS 163.175 knowing that the victim is pregnant; or
(d) Intentionally, knowingly or recklessly causes serious physical injury to another while operating a motor vehicle under the influence of intoxicants in violation of ORS 813.010 and:
(A) The person has at least three previous convictions for driving while under the influence of intoxicants under ORS 813.010, or its statutory counterpart in any jurisdiction, in the 10 years prior to the date of the current offense; or
(B)(i) The person has a previous conviction for any of the crimes described in subsection (2) of this section, or their statutory counterparts in any jurisdiction; and
(ii) The victim’s death or serious physical injury in the previous conviction was caused by the person driving a motor vehicle.
(2) The previous convictions to which subsection (1)(d)(B) of this section apply are:
(a) Manslaughter in the first degree under ORS 163.118;
(b) Manslaughter in the second degree under ORS 163.125;
(c) Criminally negligent homicide under ORS 163.145;
(d) Assault in the first degree under this section;
(e) Assault in the second degree under ORS 163.175; or
(f) Assault in the third degree under ORS 163.165.
(3) Assault in the first degree is a Class A felony.
(4) It is an affirmative defense to a prosecution under subsection (1)(d)(B) of this section that the defendant was not under the influence of intoxicants at the time of the conduct that resulted in the previous conviction. [1971 c.743 §94; 1975 c.626 §2; 1977 c.297 §1; 2005 c.513 §1; 2007 c.867 §3; 2009 c.785 §2]
Unlawful use of weapon.
(1) A person commits the crime of unlawful use of a weapon if the person:(a) Attempts to use unlawfully against another, or carries or possesses with intent to use unlawfully against another, any dangerous or deadly weapon as defined in ORS 161.015; or
(b) Intentionally discharges a firearm, blowgun, bow and arrow, crossbow or explosive device within the city limits of any city or within residential areas within urban growth boundaries at or in the direction of any person, building, structure or vehicle within the range of the weapon without having legal authority for such discharge.
(2) This section does not apply to:
(a) Police officers or military personnel in the lawful performance of their official duties;
(b) Persons lawfully defending life or property as provided in ORS 161.219;
(c) Persons discharging firearms, blowguns, bows and arrows, crossbows or explosive devices upon public or private shooting ranges, shooting galleries or other areas designated and built for the purpose of target shooting;
(d) Persons lawfully engaged in hunting in compliance with rules and regulations adopted by the State Department of Fish and Wildlife; or
(e) An employee of the United States Department of Agriculture, acting within the scope of employment, discharging a firearm in the course of the lawful taking of wildlife.
(3) Unlawful use of a weapon is a Class C felony. [Amended by 1975 c.700 §1; 1985 c.543 §1; 1991 c.797 §1; 2009 c.556 §5]
Unauthorized use of a vehicle.
(1) A person commits the crime of unauthorized use of a vehicle when:(a) The person takes, operates, exercises control over, rides in or otherwise uses another’s vehicle, boat or aircraft without consent of the owner;
(b) Having custody of a vehicle, boat or aircraft pursuant to an agreement between the person or another and the owner thereof whereby the person or another is to perform for compensation a specific service for the owner involving the maintenance, repair or use of such vehicle, boat or aircraft, the person intentionally uses or operates it, without consent of the owner, for the person’s own purpose in a manner constituting a gross deviation from the agreed purpose; or
(c) Having custody of a vehicle, boat or aircraft pursuant to an agreement with the owner thereof whereby such vehicle, boat or aircraft is to be returned to the owner at a specified time, the person knowingly retains or withholds possession thereof without consent of the owner for so lengthy a period beyond the specified time as to render such retention or possession a gross deviation from the agreement.
(2) Unauthorized use of a vehicle, boat or aircraft is a Class C felony.
(3) Subsection (1)(a) of this section does not apply to a person who rides in or otherwise uses a public transit vehicle, as defined in ORS 166.116, if the vehicle is being operated by an authorized operator within the scope of the operator’s employment. [1971 c.743 §134; 2001 c.851 §1; 2007 c.71 §50]

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