CIBOLO -- When 68-year-old Patricia Peek didn't show up for work, a concerned co-worker went to her home. That co-worker found the front door was open and called Cibolo police.
Officers found Peek's body inside the home and her brother's body in the backyard. He's identified as Keither Tanner, 51, of Austin.
Early reports indicate the siblings were involved in a dispute, but Cibolo police and the Texas Rangers are looking into the deaths.
Neighbors in the 200 block of Fawn Ridge Drive in the Deer Creek Subdivision were in shock, but they also wanted more details.
Authorities are waiting on autopsy reports to confirm whether this was a murder-suicide.