During a press conference with law enforcement, the brother of slain police officer Ronil Singh was barely able to hold back tears as he thanked the agencies who captured his suspected killer.

“Ronil Singh was my older brother. Yes, he’s not coming back but there’s a lot of people out there that misses him and a lot of law enforcement people, that I don’t know, that worked days and nights to make this happen,” Reggie Singh said, pausing at times in order to collect himself.

“I’d like to thank you from the bottom of my heart,” he continued. “I wish I could thank all of the law enforcement agencies, Homeland Security, San Fransisco, everyone. I was was waiting for this to happen. I’d like to thank you for working day and night to make this happen. Thank you.”

JUST IN: Man accused of killing Northern California police officer Ronil Singh taken into custody, officials announce. https://t.co/MA8RFPsnrq pic.twitter.com/cH7G58zDI8 — ABC News (@ABC) December 28, 2018

Gustavo Perez Arriaga has been arrested by police for allegedly shooting Singh, who had pulled him over during a traffic stop. Arriaga is suspected to have shot the officer within minutes after being pulled over. Ronil Singh died shortly after being taken to the hospital.

Police also noted Arriaga is in the U.S. illegally and has known gang affiliations, according to USA Today.

“This suspect is in our country illegally,” Stanislaus County Sheriff Adam Christianson said. “He doesn’t belong here. He is a criminal.”

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