Conrad Jimenez, 55, of Pomona was transported to a local hospital in stable condition on Monday and is expected to survive, police Sgt. Patrick O'Malley said.
Dispatchers received a 9-1-1 call about 8:30 p.m. alerting them of a shooting victim in the 500 block of North Currier Street.
Jimenez was found lying in the street with the gunshot wounds, according to a police news release.
"The victim in (Monday night's shooting) was not a gang member," O'Malley said.
The shooting on Monday continued a violent few weeks in Pomona, as the two killings on Sunday were the eighth and the ninth in the past month and half. Twelve homicides have occurred since Jan. 1.
On Tuesday, a couple feet of yellow barricade tape reading "Police line do not cross" was found behind Hector's Smog Check on the corner of Currier and Holt Boulevard.
Nearby, a child's plastic tricycle and a unclothed plastic doll were abandoned. Church bells from St. Joseph Roman Catholic Church were heard at noon.
Four residents in the area said they didn't hear any gunshots or see anything happen on Monday night.
However, directly south of the scene at Omanas Tacos, one of the workers said he heard gunshots in the evening. He also saw police looking around the perimeter of Hector's Smog Check with their flashlights.
"I think residents are fearful for the most part," the Omanas employee said. "Because if you speak, you're considered a snitch. Everybody is watching. "
One of the workers at Hector's Smog Check said that the area during the day is quiet, but, at night, "people are up to no good. "
The business' surveillance tape from Monday night showed police car lights flashing behind the building but no people were seen in the video.
Police have a general description of a suspect but are looking to get more specifics that will help narrow their search. Investigators are currently following up on the vehicle description.
At this point in the investigation, police officers said it is too early to tell if the shootings on Sunday and Monday were related.
"As of right now, we don't know if there's any correlation," police Lt. Eddie Vazquez said. "Once the evidence is processed at the lab, once we have the opportunity to evaluate the witness statements - and corroborate witness statements - we'll have a better idea. "
"Follow-up is being done in all of (the shootings)," O'Malley said. "But we need the community support. If anyone saw anything in any of the shootings - even if it seems so small, it could be something that could crack these cases. "
The shooting on Monday night followed a series of violent incidents Sunday.
About 8:30 p.m., near Fourth Street and Towne Avenue, a man was beaten bloody in the street by two other people. Witnesses said two men wearing hooded sweatshirts got out of a white Chevy Silverado and caught up to the victim, whose name was not released.
The two men proceeded to punch the victim until he fell to the ground and then continued to kick him, the witness said.
The injured man was airlifted to a local hospital.
A few moment later, 52-year-old Steven Anthony Vickers, of Pomona, was shot in his front lawn after an afternoon with family.
The shooting, in the 2300 block of Farringdon Avenue, happened more than two miles west of Monday's incident.
Vickers, who was recently diagnosed with cancer, later died at a local hospital.
About 9:30 p.m., residents near the intersections of Towne and San Bernardino avenues took cover as they heard gunshots that resulted in the death of Terrell Chavez Redic, 44, of Rancho Cucamonga.
Residents said a white car was stopped in the left lane on San Bernardino Avenue, facing west, when a motorcyclist came up to the passenger side of the vehicle and shot the individual in the car.
After firing five shots, the motorcyclist fled north on Towne Avenue, witnesses said.
"Our biggest thing right now is that we still feel the community is safe, that they're not just random acts of violence," O'Malley said.
Anyone with information about the shooting can call the detective bureau at 909-620-2085.
Those who wish to remain anonymous can call "Crime Stoppers" at 800-222-8477.