Suspicious death in Seguin ruled homicide after man found dead in vehicle, police say Seguin police are investigating their first homicide in over a year Updated: Tags: The victim was identified as Sam Flores Wallace Jr. Following an autopsy conducted by the Travis County Medical Examiner’s Office, Wallace Jr.’s cause of death was determined to be homicide due to injuries “sustained by a sharp instrument.” Seguin police were first called to the scene around 3:40 p.m., Saturday, Jan. 23, in the 800 block of W. Kinsgbury for a report of a possible suicide. Officers arrived and found Wallace Jr. deceased in his car. Upon further investigation, officials said he was killed in the backseat of his vehicle, where he often slept.