Terry Panto, 39, of Wrightwood, Megan Gray, 19, of Ontario and Daniel Basua, 31, of Rialto were taken into custody in the 2000 block of Fourth Street, Ontario police SGT. David McBride said. They were booked at the West Valley Detention Center in Rancho Cucamonga on suspicion of witness intimidation.
Police originally believed the trio was associated with a robbery that occurred last week.
"At this point in the investigation they have not been identified as suspects in the original robbery but they do appear to have a connection with the original robbery investigation," McBride said.
Ontario police dispatchers received a call about 5 p.m. from an individual possibly familiar with the suspects. The caller, whom police refused to identify for his protection, said the suspects were seen in the Stater Bros. parking lot at Fourth and Vineyard Avenue.
Police responded to the area and stopped the suspect's vehicle before handcuffing them and eventually charging them with intimidating a witness. The original robbery happened Wednesday afternoon when three people allegedly stole another man's wallet in the 1500 block of Bonnie Brea, McBride said.
Shortly after the robbery, police stopped a small pickup truck with Florida license plates in the 2000 block of Fourth Street.
Police arrested Richard Williamson, 23 and Steven Tolson, 24, both of Ontario. The third person ran from police, possibly into a nearby mobile home park, McBride said.
Officers looked for the unidentified man for most of the morning, utilizing a helicopter as well as foot patrols to search the area.
As of Monday, the suspect at large was still not arrested, McBride said.
Reach Lori via email or call her at 909-483-9378.
Get the latest crime and public safety news on Twitter @IEcrime