The married couple at the center of a murder investigation at a Smithfield manufacturing plant had a "volatile and strained" relationship, according to search warrants released in the case. A person who search warrants say Paz had been seeing in the weeks leading up to shooting told investigators that Paz was the victim of abuse by Bermudez. In an interview with investigators, Bermudez admitted to shooting Paz, warrants say. Search warrants note Bermudez had a fluid that appeared to be blood on his clothing when he was arrested. The search warrants reveal that investigators have seized digital evidence from cell phones and cameras belonging to those involved in the case.