MINNEAPOLIS — From the first 911 call, moments after Minnesota state Sen. John Hoffman and his wife, Yvette, were shot at their home in the early morning of June 14, police knew a masked gunman was impersonating an officer, had targeted a politician and was on the move.

Yet it would take 10 hours for law enforcement to systematically alert lawmakers to the exact nature of the danger they faced. Communication across a patchwork of agencies was also spotty, leaving some officials unaware of the threat for hours and raising questions about whether the suspect, Vance Boelter, could have been caught earlier.

In at least one instance, police didn’t follow their own procedures when they responded to attacks on the homes of lawmakers. The shootings killed Rep. Melissa Hortman and her husband, Mark, and wounded the Hoffmans.

A Minnesota Star Tribune investigation has found new details about the law enforcement response to the shootings, including:

The initial 911 call, made at 2:05 a.m. by the Hoffmans’ daughter, Hope, included the fact that the suspect was disguised as a police officer and wearing a mask.

In a deviation from department policy, Brooklyn Park police waited more than an hour to enter the home of Melissa Hortman after watching Mark Hortman get shot in the doorway.

New Hope police didn’t immediately communicate an officer’s interaction with Boelter, which occurred after the Hoffmans were shot but before the Hortmans were killed.

Some police officers and legislators weren’t made fully aware of the threat for several hours.

“There wasn’t a playbook for this, and I think that was clear,” said DFL Sen. Erin Maye Quade.

Boelter is now facing state and federal murder charges, state attempted murder charges and federal charges of stalking and use of a firearm.

State Public Safety Commissioner Bob Jacobson said that “law enforcement did an admirable job of trying to respond and make sure they were doing their very best in this case.”

Still, Jacobson said public safety leaders ordered a review of their conduct that morning, and Minnesota’s Office of the Legislative Auditor said it would consider launching its own investigation into how communication was shared.

“We have received several requests to do an inquiry or a review related to the communication around the rapid response,” Legislative Auditor Judy Randall said Thursday.

missed chances

The first interaction between law enforcement and Boelter took place near the home of Sen. Ann Rest at 2:36 a.m. when a New Hope police officer “self-dispatched” to perform a spot check on Rest’s home. The officer, a 12-year veteran, encountered Boelter sitting in his makeshift police vehicle.

The officer believed Boelter was a police officer who was checking on Rest and asked Boelter to roll down his window. He was a “bald, White male, staring straight ahead,” according to court records. Boelter didn’t respond to the New Hope officer, who left to check on Rest.

When the officer returned, Boelter was gone.

Several sources with knowledge of the investigation said the officer’s interaction with Boelter was not reported to other law enforcement agencies in real time.

Whether that’s because the officer didn’t report it or because police radio traffic was so heavy that the transmission didn’t go through is currently unknown.

It also isn’t clear what the New Hope officer knew at that time and why she was on her way to Rest’s home.

The New Hope Police Department has declined several requests to share more information about the interaction. They provided the Star Tribune with a police report on the incident that doesn’t make any mention of the encounter with Boelter.

The New Hope encounter occurred just minutes after police started reviewing the Ring camera footage from Hoffman’s house. The footage, which the Star Tribune reviewed, shows the suspect clearly dressed as an officer with what appeared to be a police vehicle flashing its lights in the driveway. The sound of Boelter allegedly shooting the Hoffmans isn’t captured, but as he climbs back into his SUV, someone inside the home says, “Call 911.”

A transcript of that 911 call was provided to the Star Tribune last week. It was heavily redacted but showed Hope Hoffman telling dispatchers her father was a state senator. A source who has heard the audio of the 911 call said that Hope describes the suspect as impersonating law enforcement and wearing a mask. Body camera footage reviewed by the Star Tribune shows a police officer outside the Hoffman residence watching the Ring camera footage at 2:25 a.m.

After gunfire, police wait an hour

About the same time officers at the Hoffman residence were reviewing the home security footage, some police departments began checking on state politicians.

But it took more than an hour for Brooklyn Park police to visit the Hortman home.

At 3:35 a.m., two Brooklyn Park police officers arrived at the Hortman residence. Those officers fired at Boelter as he entered the house after shooting Mark Hortman. Additional muzzle flashes from Boelter inside the home lit up the entryway.

Despite the gunfire, officers didn’t enter the house until 4:38 a.m., according to time stamps on the bodycam footage. Instead of entering the home immediately to check on Melissa Hortman, the officers waited for a drone to be deployed to see if Boelter was inside and if Melissa Hortman was still alive.

A source familiar with the drone footage said Hortman is shown immobile and curled up on the landing at the top of the stairs.

At 4:42 a.m., Melissa Hortman was taken out of the house and brought to an ambulance.

Brooklyn Park Police Chief Mark Bruley has said his officers believed they shot Boelter and he was “holed up” in the basement.

After shooting the Hortmans and the family dog, Gilbert, Boelter allegedly escaped out the back door, which was propped open. He then dumped his mask, wig and gun, and was on the run for 43 hours before being captured. Bruley said in an interview with the Minnesota Reformer this month that his officers were using de-escalation tactics in the pursuit of Boelter.

A senior law enforcement official, who spoke on the condition of anonymity and has been in several active shooter situations, said this was not a situation that called for de-escalation but fit the description of an active shooter. That meant officers should have gone into the house to confront Boelter.

Every city on own

After he escaped, the dire nature of Boelter’s plans was not immediately conveyed to politicians. Several were told to contact local law enforcement for protection only to learn their local law enforcement had no idea about the attack.

Sen. Jim Abeler was among the first legislators to hear of the shootings and get protection. The Republican said Anoka police knocked on his door at 3 a.m. to warn him a legislator had been shot, 35 minutes before officers arrived at the home of Melissa Hortman. Police returned a half-hour later, Abeler said, and told him, “If somebody comes back, call 911 to make sure it’s us.”

Other lawmakers didn’t get such prompt protection, Abeler said. He recalled a DFL senator asking him about her personal safety at 6:30 a.m.

“Every city was left to its own response,” Abeler said. The first widespread dissemination of the information to law enforcement was sent out at 4:25 a.m. via teletype to agencies in the seven-county metro area. Jacobson said it’s the only system that exists to get the information to every dispatch center.