Sheriff's office: Teenager was intentionally run over in Andover

All 3 suspects have been arrested.

Three suspects accused of intentionally running over a teenager in Andover over the weekend have been arrested. 

Tristan Gene Robinson, a 17-year-old from Nowthen, Minnesota, was found dead in the street on Friday night, with injuries consistent with being struck by a vehicle. 

According to the Anoka County Sheriff's Office, Robinson had been at a friend's place near 141st Avenue and Palm Street when he "stepped out" around 6:20 p.m. Shortly after that, Robinson's friends heard the sounds of a crash and screeching tires. They found the teen on the ground with multiple injuries, but didn't see any cars. Robinson died at the scene.

Though first reported as a hit-and-run, authorities have new information that suggests the incident was no accident.

Robinson "was allegedly willfully, intentionally struck with a car by a driver who intended to do so," the sheriff's office said in a news release Sunday afternoon.

The incident has now being called second-degree murder, though as of Monday morning no formal charges had been filed. 

All 3 suspects arrested

Three people conspired to rob Robinson that night, and in the process, ended up running him over with a car, the Anoka County Sheriff's Office says.

In a news conference on Sunday (KARE 11 shared a live stream here), Cdr. Paul Sommer said the whole thing was over a small amount of marijuana.

Sommer said the suspects had used Snapchat to arrange a meeting with Robinson in the street that night, secretly planning to steal his weed. At some point during the attempted robbery, Robinson was fatally struck and the vehicle fled the scene.

All three suspects have been taken into custody, with officials saying Monday morning they arrested the third suspect – a 19-year-old from St. Francis – in Isanti County. 

A juvenile male and a 17-year-old boy – both from St. Francis – had previously been taken into custody. 

Sommer also said Monday they had located the suspects' vehicle they had been looking for.

Officials are expected to release more information later Monday. 

Producer Melissa Turtinen also helped with the reporting on this story. 

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