Authorities say a suspect has been arrested in series of shooting attacks in Phoenix a year ago that left at least seven people dead and two others wounded over a four-month period.
Police at the Monday press conference said evidence collected during the string of Phoenix freeway shootings helped to identify Saucedo as a person of interest in the street shootings.
Saucedo was a bus driver for the city of Phoenix through a temp agency for several months in July through August 2015, Phoenix police said.
Police gave few details on how they linked Saucedo to the killings and they did not say why the attacks stopped last July.
The killer was dubbed the Serial Street Shooter.
Police say they don't know what motivated Saucedo and that he didn't have any connection to any of the eight people who were killed. On Monday, they raised the number of people killed to nine and said there were 12 total shootings - with the first one happening in 2015.
Phoenix police say that they have " a wide host of evidence", that includes ballistics, witnesses and forensic evidence connecting Saucedo to the deaths of at least nine.
Police have not offered a motive in the street killings.
Williams announces, Monday, May 8, 2017, in Phoenix, the arrest of 23-year-old Aaron Juan Saucedo in connection with the serial street shootings that terrorized the Phoenix area over four months in 2016.
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"We hope that our community will rest a little easier and that our officers will get a little more sleep knowing that the wheels of justice are finally in motion", Police Chief Jeri Williams said. He was charged with murder in that case on April 21.
Officials announced Monday that 23-year-old Aaron Saucedo is suspected in 12 shootings that happened between August 2015 and July 2016. According to the complaint in the Romero case, Salcedo said he did not commit that crime. He killed Manny Castro Garcia on June 10, 2016.
She said she had grown frustrated about being kept in the dark about the investigation.
Jesse Olivas, 22, was shot dead on the street on January 1, 2016.
Saucedo was initially taken into custody on April 19 for the murder of 61-year-old Raul Romero.
In the most deadly single attack, two women and a 12-year-old girl were shot to death in front of a home before dawn on June 12, 2016, police said.
Rosa Pastrana, the head of a block watch group in the Maryvale neighborhood hardest hit by the killings, was relieved after hearing news of the arrest.
Some residents were apathetic at first but many got involved as the shootings continued, she said.