SIOUX FALLS — A Sioux Falls man believed to have provided assistance to another during a September shooting just east of the city’s downtown has been arrested.

The Minnehaha Sheriff’s Office on Tuesday, Feb. 28, said Alan Larranagaraya, 19, of Sioux Falls, had been arrested. Authorities had posted on social media hours prior seeking information regarding his whereabouts.

Contributed / Minnehaha County Sheriff's Office

An indictment filed Feb. 16 charged Larranagaraya with 12 felonies, including one count of aiding and abetting an attempted premeditated murder, two counts of aiding and abetting aggravated assault, one count of aiding and abetting the discharge of a firearm at an occupied vehicle and seven counts of accessory to a crime.

The charges stem from a Sept. 9 shooting when the victim, identified as Miguel Aguirre in public court documents, left his vehicle running while inside a business in the 1600 block of East 10th Street.

During a Sept. 9 briefing, police spokesman Sam Clemens said Aguirre witnessed an individual enter his vehicle. Aguirre confronted the man and a struggle ensued, during which Aguirre sustained a minor cut to the bridge of his nose.

Clemens said that after the suspect ran off, Aguirre began following him with his vehicle and witnessed the suspect enter the passenger seat of a vehicle roughly two blocks away. That’s when Clemens said the suspect must have realized Aguirre was following him. The suspect fired a single shot toward Aguirre’s vehicle and left the scene.

Aguirre was not struck in the shooting, but his vehicle’s side mirror sustained damage. Clemens said Aguirre was able to capture some photos of the suspect, which were turned over to police.

Days later, on Sept. 14, Clemens announced that the photos captured by Aguirre had led to a successful identification of the suspect, then-18-year-old Hamza Hassan, of Sioux Falls. An arrest warrant was issued on one count of attempted murder, multiple counts of aggravated assault, one count of discharging a firearm at a vehicle and more. Hassan was brought into custody without incident the same day.

Court records indicate that on Feb. 3, Aguirre was subpoenaed to appear in court to testify against Hassan.

However, one week after Hassan’s attorney filed a Feb. 15 motion to require prosecutors to “specify tangible, physical and demonstrative evidence,” all charges against him were dismissed on Feb. 21.

Though Larranagaraya’s Feb. 16 indictment fails to specify how prosecutors believe he was involved in the shooting, or how he allegedly aided and abetted in Hassan’s case, Aguirre was listed as a witness who provided sworn testimony to the grand jury.

Minnehaha County State’s Attorney Daniel Haggar was not immediately available to discuss how the dismissal of Hassan’s charges may impact Larranagaraya’s charges of aiding and abetting.

Larranagaraya is being held in the Minnehaha County Jail, and a court appearance has not yet been set. If convicted on all charges, he could be sentenced to serve as many as 105 years in prison and pay fines of up to $210,000.