AUBURN (CBS) — Tammy Lemieux and her husband were the first ones to help fallen Auburn police officer Ronald Tarentino moments after he was shot during a traffic stop.

“I held him, I tried to keep him calm,” Lemieux said, fighting back tears.

READ MORE: Rally Calls For Asian Studies To Be Added To School Curriculum In Massachusetts

They heard gunshots from across Rochdale Street and then the cries for help.

“We heard ‘help, officer down, officer down,'” she said.

READ MORE: Dorchester Grandmother Killed By Stray Bullet While Sitting On Porch Identified As Delois Brown
Officer Ronald Tarantino. (Auburn Police Department)

Officer Ronald Tarantino. (Auburn Police Department)

There was no sign of anyone but the officer. The couple ran over with towels. Lemieux says Officer Tarentino was shot in the lower back. More officers arrived within minutes.

“My husband held his head up, and the towel, and rolled him with the other officer to check the wound,” said Lemieux

Lemieux never met Officer Tarentino. She had police place an angel figurine close to where she clutched his hand.

MORE NEWS: Water Conservation Urged In Massachusetts Amid Dry Spell
Police set up a memorial where Officer Ronald Tarentino was killed. (WBZ)

Memorial where Officer Ronald Tarentino was killed. (WBZ)

“I hope he rests in peace knowing he wasn’t alone, that me and my husband were with him, and I want him to be at peace and his family to be at peace knowing he wasn’t alone,” Lemieux said.