FORT RECOVERY — Investigators handling the double homicide of an elderly man and his caretaker daughter last week are looking for a missing laptop computer they said was taken from the crime scene.The announcement of the missing laptop and that investigators have obtained search warrants, including one to take a computer from another location they believe one of the victims may have used to communicate with people, are the latest developments in the murder investigation, Mercer County Sheriff Jeff Grey said Tuesday.“We are unsure of what information the laptop contained and why it would be of interest to the” killers, Grey said. Robert Grube, 70, and his daughter, Colleen Grube, 47, were found Nov. 30 bound with duct tape and shot to death inside the home they shared at 2216 Burrville Road, three miles east of Fort Recovery. Grey said the crime happened sometime between 5 p.m. Nov. 29 and 9 a.m. the next morning.Investigators have sent evidence to crime labs and are conducting data analysis in hopes of catching the break they need to solve the case, Grey said. “I am very hopeful that as we analyze the information, we will identify a reason and suspect or suspects,” Grey said. There are a dozen investigators working the case including agents from the Ohio Bureau of Identification and Investigation. Investigators have received 43 tips that they are looking into, Grey said. Grey also said a search warrant was obtained to take a vehicle at the residence but he did not say if the vehicle belonged to someone at that home or whether it could have been connected to the suspect or suspects.Ohio Attorney General Mike DeWine has called Grey to ensure him his agency will provide all the help Grey needs, Grey said.Anyone with information about the crime is asked to call a tip line at 567-890-8477 or the Mercer County Sheriff’s Office at 419-586-7724.You can comment on this story at www.limaohio.com.