According to Tracy police spokesman Matt Robinson, detectives originally linked 23-year-old Jose Rogelio Lopez to the youth baseball organization after discovering him in a "team picture" during a search of his residence.
"When the picture was found one of the detectives recognized a field behind the team as the same field used by Tracy Babe Ruth," he said. "Because his son plays for that league and that is the field they always use, he assumed it was a Babe Ruth team."
After putting out a call for concerned parents to come forward, detectives discovered that Lopez actually had been coaching for the local Jr. Giants organization.
"We had a mother contact us recently who recognized Lopez as a coach for that team," Robinson said, noting that no further allegations of abuse have been made. "In the photo, the team shirts just said Giants, so it wasn't clear they were the Jr. Giants."
Detectives now believe Lopez coached or helped coach that team for the last three years under the name Roger Lopez, which would be the English version of his middle name, Rogelio.
Concerned parents still are being asked to contact Detective Nate Cogburn at 209-831-6617.
Lopez made his first court appearance last Wednesday but did not enter a plea.
Police arrested Lopez on Feb. 7 on suspicion of trying to engage a 13-year-old boy in a sexual relationship.
Lopez was arrested at the boy's residence by Cogburn the culmination of a long investigation.
Over the course of the past two months, police say Lopez forged a false friendship with a boy he met through a couple of relatives.
The two exchanged text messages, phone calls and MySpace messages, Cogburn said.
They hung out on occasion, listening to music, playing video games and watching television.
The victim's father became suspicious and reported the relationship to Tracy police, Cogburn said.
Lopez was arrested on suspicion
of distribution of lewd material to a minor, contacting a minor for the purpose of engaging in certain lewd behavior and annoying or molesting a child.
Lopez will make his next court appearance and officially enter a plea at 8:30 a.m. Feb. 26.
Aaron Swarts can be reached at 209-832-6139 or firstname.lastname@example.org.