A Hennepin County judge approved the no-knock warrant that led to the police killing of Amir Locke during a raid in downtown Minneapolis last week in order to ensure officer safety and preserve potential evidence in a St. Paul homicide investigation, according to court documents unsealed Thursday.
Authorities claimed that a no-knock operation would "decrease the risk for injuries to the suspects and other residents" because the individuals they sought had violent criminal histories and were known to be armed.
The stealth entry to execute the search warrant was approved Feb. 1, the day before Minneapolis SWAT officers stormed into the Bolero Flats apartment yelling "Search warrant!" without knocking. Locke, 22, was on a couch under a blanket, and he stirred after an officer kicked the couch. He had a gun in his right hand and was shot within seconds.
The predawn raid stems from the fatal shooting of 38-year-old Otis Elder during an apparent drug transaction Jan. 10 outside a music recording studio in St. Paul. The latest court filings accuse Locke's 17-year-old cousin Mekhi Speed and others with him of "attempting to rob [Elder] of money and/or drugs."
Speed was charged Tuesday with second-degree murder for the killing of Elder. County prosecutors want to certify him to be tried as an adult. He remains in custody ahead of a Feb. 15 court appearance.
Speed was living with his mother in a different unit of the Bolero Flats Apartment Homes at 1117 S. Marquette Av. in downtown Minneapolis but had access to another apartment raided by police.

Locke was not the subject of the search warrant, nor were the others who were present in the apartment at the time police burst in: Speed's older brother and the brother's girlfriend. No records indicate that Locke was thought to be involved.
His death has revived intense debate about the use of no-knock search warrants, which critics say unnecessarily escalate police encounters. Thousands of protesters have since taken to the streets — and some have walked out of school — to demand justice for Locke and the resignations of Mayor Jacob Frey and Interim Police Chief Amelia Huffman.