Complex sentence: Steve Gilmore, lieutenant of detectives with the department, said that the suspect left town soon after Kunz's death, and that We still know where he's at and what he's up to.
Split into simpler sentences: Steve Gilmore, lieutenant of detectives with the department, said that the suspect left town soon after Kunz's death. Gilmore also said, We still know where he's at and what he's up to.