SOUTH LOS ANGELES (CBSLA.com) — A small memorial grows and glows for a 57-year-old bicyclist fatally struck five days ago by a hit-and-run driver.

CBS 2’s Andre Fujii said Albert Arnold, a car detailer by trade — is remembered by friends as an incredibly nice man.

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Emma Brown was Arnold’s neighbor and friend. She said her friend was killed in such a heartless way.

“I’ve never seen him mad, never. He always happy,  he was. I can see his smile right now,” Brown said.

She said he was walking to his sister’s house at  2:30 in the morning on August 12. He was crossing the street with his bike.

The accident happened at Broadway and 87th Streets.

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The driver hit him and kept going. Police said there are security images of the car, believed to be a newer model sedan speeding north on Broadway.

Fujii reports that police are offering a $50,000 reward for information leading to the arrest of the driver.

Brown says she’s frustrated by hit-and-run drivers who have seen to have become the norm.

“I’m scared to cross the street sometimes,” she says, “it’s too much hit-and-runs. And nobody says nothing.”

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Anyone with information about the fatal hit is asked to call police at the 77th Division. Witnesses can remain anonymous.