An Arizona man embarked on a violent two-week shooting spree, resulting in the deaths of two individuals—one who was tragically killed while seated at a bus stop, and another discovered lifeless near an intersection. Authorities report that the suspect carried out these acts while riding an e-bike, according to both police and the victims’ families.

The Phoenix Police Department has charged 21-year-old Adalberto Pablo Cordova Torres with two counts of first-degree murder for the killings of Marcus Adams, 45, and Andreas Olguin, 29. He also faces a charge related to discharging a firearm at a residential building.

Police detail that Cordova Torres’ violent actions began on November 11, when a resident near 16200 North 1st Drive awoke to discover bullet holes in their home. On November 24, Adams was fatally shot and left near 19th Avenue and Greenway Road. Less than a week later, on November 29, Olguin was killed while waiting at a bus stop near 19th Avenue and Thunderbird Road. Both men were declared dead on the scene.

“Never in my wildest dreams did I think my son would be sitting at a bus stop and become the target of such senseless violence,” remarked Olguin’s mother, Toni Perez, during an interview with local Fox affiliate KSAZ.

Perez shared with KSAZ that detectives revealed to her that Cordova Torres had no prior connection to her son, indicating the shootings were random. “That’s what infuriates me,” she expressed. “No one should have to endure this. I am determined to pursue justice for my son and for Marcus, as both deserve it.”

Police reports indicate that Adams was discovered at approximately 3:15 a.m. on November 24, having suffered nine gunshot wounds. At the scene, investigators found 14 spent shell casings. Olguin was struck by 11 bullets, and 15 shell casings were located around the bus stop; the shooting occurred around 2 a.m., according to police accounts.

“Once the ballistic evidence from the three cases was fully processed, a correlation between the cases was found and all three cases were linked through this ballistic evidence,” the Phoenix Police Department says in a press release. “Case agents of all three cases began to work together in an attempt to identify the suspect.”

Investigators discovered additional evidence, including surveillance footage, linking Cordova Torres to each of the crime scenes, which led to his arrest on Thursday.

Court documents obtained by local TV station KTVK outline how Cordova Torres was allegedly caught on video approaching both Adams and Olguin before opening fire on them and fleeing on an e-bike. He is accused of using a 9mm handgun in all three shootings.

Police say Cordova Torres works at a business that is between 2 and 8 miles from each of the shooting sites. His employer allegedly confirmed that he had been working nights before the murders occurred.

Cordova Torres is being held on a $3 million bond and is due in court on Dec. 11.