Jacob Baker was arrested on Hawaii's Big Island after a search linked him to the murders of three elderly men found in remote areas.The suspect was captured hiding in a cave following a multi-agency manhunt that utilized state and federal resources.Police officials reported no clear motive for the killings, which occurred days after local women had their requests for restraining orders against the suspect denied.Authorities are continuing their investigation into the crimes as community members express relief following the conclusion of the search.