Who Is Gregory Paul Ulrich? Minnesota Shooting Suspect Known To Police

The suspect in Tuesday's deadly shooting spree at a Minnesota health clinic was known to authorities for making violent threats.

Gregory Paul Ulrich, 67, opened fired late Tuesday morning on an Allina Health Clinic in Buffalo, about 40 miles outside Minneapolis. One person was killed and four others were injured in a spree that involved an unknown number of explosive devices.

Apart from the shooting, authorities said they were investigating a package left at the scene and additional “suspicious devices” at an area motel where Ulrich was staying, Reuters reported Tuesday.

It’s unclear if any of the suspicious devices detonated, though news footage showed plate-glass windows shattered at the health clinic and at the motel where Ulrich was staying.

Police Chief Pat Budke said the motive wasn’t exactly clear, though Ulrich had a history of being unhappy with his health care.

“All I can say is, it’s a history that spans several years and there’s certainly a history of him being unhappy with health care...with the health care that he’d received,” Budke was quoted by The Associated Press as saying.

The Minneapolis Star Tribune reports Ulrich has a record of making threats against the same facility in 2018. Doctors there told authorities that he talked about "shooting, blowing things up, and practicing different scenarios of how to get revenge."

A person who claimed to have lived with Ulrich last year told the Minneapolis newspaper the suspect allegedly abused painkillers and was frustrated when doctors would not renew his prescription.

Court records reviewed by the AP found Ulrich has a history of arrests going back to the early 2000s, mostly for minor drug or alcohol offenses. After violating a restraining order in 2018, Ulrich was found to be “mentally incompetent to proceed” with a trial last year.

Three of the shooting victims are still in the hospital and one has been released.

Ulrich is scheduled to appear for arraignment on Thursday.