Suspected arrested in East Monroe assault that leaves one dead and two injured

Published: Sep. 3, 2020 at 12:16 PM MDT|Updated: Sep. 3, 2020 at 12:17 PM MDT
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UPDATE: Suspect Allac ‘AJ’ Dismounts Thrice has been taken into custody and is charged with one count of 1st Degree Murder and two counts of Attempted 1st Degree Murder. 39-year old Richard Montanez of Rapid City died due to injuries sustained as a result of the assault.

UPDATE: The E. Monroe Street triple-assault suspect has been identified as 28-year-old Allac ‘AJ’ Dismounts Thrice of Rapid City.

He is considered dangerous and the public should not approach. If you have information about his whereabouts, contact the police at 394-4131.

An anonymous tip can also be submitted by texting the letters ‘RCPD’ and the info to 847411.

LIVE UPDATE: E. Monroe Street assault

Posted by Rapid City Police Department on Thursday, September 3, 2020

Previous Report:

RAPID CITY, S.D. (KEVN) -A “serious assault” is under investigation by Rapid City Police Thursday.

Due to serious injuries, several individuals were transported to the hospital. Currently, police are working to find the suspect responsible.

This is an ongoing story, updates to come.

Copyright 2020 KEVN. All rights reserved.

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