Is it against the law for a peace officer to fail reporting an attempted suicide shooting?

Is it a crime for a Texas Peace Officer to not report a shooting/ attempted suicide on his own personal property. The officers wife and her mother had a violentl argument in which the officer aggitated and then the mother went home and attempted suicide by shooting, her dog jumped on her arm and deflected/ the bullet went into her wall instead. She had called her preacher to let him knowwhat she was doing and for him to pray for her. He called her son and the son texted the officer to get him to check. The officer and his wife were at home and failed to answer the destressed calls by an aunt and preacher and son to go check on his mother in law who lives in a mobile home. No report was made. Please tell me if there should have been a report made by officer and what is the penalty for not answering a distressed call and not reporting the incident?