EPHRATA - Prosecutors dropped a drive-by shooting charge against a Mattawa gang member accused of a July drive-by shooting.

Prosecutors initially charged Anthony Lucio, 26, with three counts of assault in the first degree and drive-by shooting, according to court records. Grant County Superior Court Judge John Knodell did not find probable cause to continue with the assault charges, but left the drive-by shooting charges.

Prosecutor Angus Lee stated the case was dismissed after problems arose with a confidential informant. The informant linked Lucio with the drive-by shooting.

"Initial information provided by law enforcement about the drive-by inculpated the defendant, but that information relied exclusively on a single informant," he stated. "However, in subsequent interviews with that informant he gave a different story where the defendant did not participate in the drive-by. Without reliable and consistent information from the informant there was no longer sufficient evidence to rely upon."

Marcos A. Avalos Barrera, 22, Wenatchee, remains charged with drive-by shooting. A bench warrant was issued for his arrest.

The drive-by was reportedly linked to a fight between gang members and a mother getting her son from a George park.

Two brothers were at an aunt's house for a family gathering, when they reportedly heard about a fight happening at a George park. Their brother was at the park at the time, so they went with their mother to get him from the park, according to a Grant County sheriff's report.

When they arrived they saw their brother near a large amount of gang members fighting, according to the police report.

None of the men are involved in gangs, according to court records.

When the woman got out of the vehicle to get their brother, Avalos Barrera reportedly approached her and started yelling. She responded by telling him she was there to pick up her son, according to court records. Avalos Barrera reportedly started "jumping around and acting crazy and yelling and grabbing his waistband," before approaching the woman and punching her.

The two men allegedly tried to separate their mother and Avalos Barrera, when another unidentified woman reportedly joined the fight, according to the police report. They managed to get away from the fight, and returned home.

A confidential informant reportedly told police Avalos Barrera called other gang members, including Lucio, telling them they were going after a rival gang, according to the police report. The two men reportedly left the group with a gun.

After returning home, their mother and one of the children went to Quincy Valley Medical Center because she was hurt after the fight, according to the police report. The two men along with their siblings were in the residence when a silver minivan drove by two or three times.

On the last pass, one of the men reportedly saw a shiny "gun-like object" come out the window, and heard shots, according to the police report. When the victim looked up, he saw they exited the van, and were approaching the house.

One of the victims suspected the shooters saw the 3- and 4-year-old children in the house and left, according to a police report.

Avalos Barrera reportedly fired the shots, according to the police report.