UPDATE (2/18/2015 @ 5:52 a.m.): Eric Clayton Khun, 25, of Temple City, was arrested Tuesday after detectives followed up on leads. Evidence found at Khun’s home linked him to the crimes.

TEMPLE CITY (CBSLA.com) — Deputies are on the hunt for a suspect who attacked an elderly man Saturday at an ATM in Temple City.

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The 79-year-old victim told CBS2/KCAL9’s Andrea Fujii he was knocked unconscious.

Raul Fonseca says he’s glad he was the victim and not anyone from his family.

He was standing in line at an ATM at the corner of Las Tunas Drive and Primrose Avenue around 7 p.m. when a man started yelling up and down the street.

The man turned on Fonseca: “He said, ‘Do you know me?’ I said, ‘I don’t know you. That was the only thing I said, ‘I don’t know you.'”

Fonseca said he felt threatened and pushed the suspect away.

“I said, ‘Oh my God, what I do? What I do?’ So I push many time but he come back close to me.”

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Fonseca said he took a swing at the suspect and the man lashed out: “He got me and boom, that’s when I hit the back of my head.”

He fell and knocked his head on the concrete, rendering him unconscious.

The suspect ran off and did not take any money.

Witnesses called police.

Fonseca was hospitalized for two nights and is now back home, with a black eye and bruises as testament to the attack.

He says he’s worried the suspect is still out there and plans on being vigilant: “I’m scared, yeah.”

The suspect was described as nearly six feet tall and possibly in his 30’s.

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Police say they’re waiting to look at security video from the bank.