From staff reports

UPDATE: April 30
Recent findings in the triple homicide case in the Lake County Acres area have exonerated one of the suspects, Dennis Craig Alexander, from any involvement in the murders, according to the Parker County Sheriff’s Office.

Initially, during the early stages of the investigation Alexander was identified as a suspect by the other suspects; however, subsequent findings have led investigators to conclude that he was not connected to the crime. 

Based on the information that further investigation has now revealed, the charges against Alexander are being dismissed and he has been released from custody.

April 29:
Parker County Criminal Investigations Division in corroboration with Texas Rangers arrested three individuals in connection with the homicides of Tiffany Ann Williams, 44; David Wayne Walker, 42; and Robbie Allen Head, 55, which occurred on Sunday, April 20, at a residence in southern Parker County.

The suspects are identified as Barrett Copeland, 19; Dennis Craig Alexander, 45; and Trin Lawrence McKnight, 27, according to Deputy Danie Huffman.

All three men have been charged with capital murder and are currently incarcerated at Parker County Jail. Their bonds were set at $1,000,000 each, Huffman added.

Copeland was additionally charged with burglary of a habitation with an additional bond amount of $50,000, according to sheriff’s reports.

McKnight was additionally arrested on an outstanding warrant of possession of a controlled substance out of Tarrant County, officers said.  

Parker County Sheriff Russ Authier said the investigation is ongoing but wished to thank the Texas Rangers for their expertise and assistance in aiding in this investigation and to Sheriff’s CID investigators, SCU investigators and Patrol Division for their efforts and hard work throughout this investigation.

Huffman said no further information will be publicly released due to the ongoing investigation.