A man accused of killing two people along a South Bay trail appeared in court on Thursday. Investigators say Marcelino Castro admitted to the murders along the Guadalupe Park Trail and led officers to the bodies of both victims. The investigation began Saturday, after police say Castro flagged down an officer. Police say he confessed to two killings and led officers to the bodies. The DA’s Office says it believes the first murder happened on Sept. 13, and the second a few days later. “Based on that timeline, we’re concerned, had another 24-48 hours passed, we may have had another murder,” Deputy District Attorney Michael Gadeberg said. In both cases the motive is still under investigation. As of now, Gadeberg says there’s no indication there are more victims, but they’re still investigating. “We’re certainly still investigating all possible leads and all avenues, I wouldn’t rule out the possibility that there’s another victim and we’re continuing to look into that,” he said. “It appears that this is someone who was a thrill killer, that sought these victims out, very vicious crimes and prosecutors can’t take this for granted that these are the only victims out there. I think law enforcement needs to keep an open mind about this case,” legal analyst Steven Clark said. Clark says even though investigators have a confession, building a case will still be essential. “Law enforcement cannot take anything for granted in this case, they not only need to use the confession but they need to tie him to these murders forensically, are there witnesses? Is his DNA at the crime scene?” he said. Castro is being held without bail and is expected back in court in December. While investigators haven’t commented on his criminal history, San Jose Mayor Matt Mahan released a statement, indicating the suspect has one. The mayor posted on social media that Castro should be held fully accountable, adding, “But how does someone rack up six felony convictions, face two more active felony cases, and keep cycling through the system as things get worse? How and why was he released in the first place? At some point, intervention has to mean more than processing the next case and sending someone back out.” The victims have not been identified. ...read more read less