Phoenix police are investigating after a woman was killed and a teen was injured in a trio of random shootings.

Police said the arrested men didn’t know the victims in the three shootings that occurred around 12:10 a.m. Wednesday in different locations in north Phoenix.

Sgt. Maggie A. Cox stated that a Leanne Holum, 38, was fatally shot while standing in a fast-food restaurant’s drive-thru lane near 19th Avenue and Bell Road. A 17-year-old boy was then shot and wounded while walking on a sidewalk near 7th and Grovers avenues.

Court documents state the teen is in critical condition with a lacerated kidney.

Police said a third victim wasn’t injured when a suspect fired a pellet rifle at his vehicle, shattering a window during an unsuccessful carjacking attempt on the other side of 7th Avenue.

Ms. Cox said the four men were arrested after the third victim called police and followed the suspect vehicle back to the area of the first shooting.

The suspects were arrested and identified as Charles Lemar Harris, 19; Troy Angelo Brunetti, 18; Larry Deshawn Scott, 19; and Austin John Olson, 21.

Each was arrested on suspicion of murder, drive-by shooting, aggravated assault and armed robbery.

According to records, the four admitted they were in the vehicle during the incidents as well as several other unreported incidents.

"The subjects indicated they were driving around looking for homeless people to shoot," court documents state. "They admitted to several people being shot and to shooting at residential structures and vehicles. They also admitted they were looking for people to rob and vehicles to steal."

Online court records didn’t show attorneys who could comment on the allegations on behalf of the arrested men.