Stay Curious. Stay Connected.
MailNewsletters♡Donate Now
Sign up
*Password must be at least 8 characters and contain one uppercase letter, one lowercase letter, one number and one symbol.
Already have an account?
By submitting, you consent that you are at least 18 years of age and to receive information about MPR's or APMG entities' programs and offerings. The personally identifying information you provide will not be sold, shared, or used for purposes other than to communicate with you about MPR, APMG entities, and its sponsors. You may opt-out at any time clicking the unsubscribe link at the bottom of any email communication. View our Privacy Policy.
Sign in to your profile
Forgot Password?
New to MPR News?
Welcome back
to news
for you
Reset Password

Enter the username on file and we'll send you a code to reset your password.

Still require assistance or not sure what your User Name is?
Welcome back
to news
for you
Email Verification

A verification code has been emailed to

Still awaiting the code?
Jon Collins

Police say teenager killed on I-694 charged officers with knife

Go Deeper.

Create an account or log in to save stories.

Log inCreate a free Account

Like this?

Thanks for liking this story! We have added it to a list of your favorite stories.

Show me!
Police begin to clear the scene of a shooting.
Police begin to clear the scene of a shooting on I-694 East and Rice Street in Shoreview, Minn., on Dec. 17, 2014.
Regina McCombs / MPR News file

A Washington State teenager killed by police on Interstate 694 in Shoreview on Wednesday had a knife and was approaching officers at the time he was shot, according to the Minnesota Bureau of Criminal Apprehension.

The agency also identified the two officers who shot Johnathon Dean Mar, 18, of Kennewick, Wash., following the discovery of a dead man at a rest stop and a high-speed pursuit.

Maple Grove police said they found 23-year-old Matthew Paul Maffei, whose previous address is unknown, dead of a gunshot wound at a Maple Grove rest stop at about 1 a.m. on Wednesday.

An SUV driven by Mar was seen leaving the rest stop. Police said Mar led them on a high-speed chase that ended when Mar crashed into the median of I-694 just west of Rice Street.

Mar "emerged from the vehicle with a knife and began repeatedly stabbing himself," according to a statement from the BCA. "Mar ignored repeated commands from law enforcement to stop and get on the ground."

Investigators said that Mar then "charged" officers. Hennepin County Sheriff's Deputy Matthew Hagen and Brooklyn Center Police Officer Alan Salvosa opened fire on Mar. He died of multiple gunshot wounds, according to a report from the Ramsey County Medical Examiner's office.

Hagen has served for 15 years in the Hennepin County Sheriff's Office. Salvosa is a four-year veteran of the Brooklyn Center Police Department. Both officers are on administrative leave.

The BCA is investigating Mar's death at the request of the Hennepin County Sheriff's Office and the Brooklyn Center Police Department. The final investigation will be turned over to the Ramsey County Attorney's Office for review.

Maffei's death at the rest stop in Maple Grove is being investigated by the Maple Grove Police Department.