Police say a Pennsylvania woman high from smoking methamphetamine has fatally shot her husband after mistaking him for an intruder . Police say 31-year-old Trista Zickefoose shot her 40-year-old husband , Greg , on Sunday night at their duplex apartment in Knox Township , about 80 miles northeast of Pittsburgh . Authorities say that the couple had argued after smoking the drug together and that Trista Zickefoose later heard a noise that she believed was from an intruder . Scroll down for video . Incident : Police say 31-year-old Trista Zickefoose shot her 40-year-old husband , Greg , on Sunday night . Incident : The shooting reportedly took place at the couple 's duplex apartment in Knox Township . Police say she grabbed a 9mm pistol she kept under her pillow and fired a warning shot . Police say her husband tried to take the gun away from her , but she shot him in the chest . She remains jailed Tuesday on a charge of criminal homicide . Court records do n't list an attorney for her . Neighbor Ray Chappel told WJAC 'Well , I was awake last night and I heard a sound , I didn ’ t know if it was a gunshot or what . I was n't expecting it . They seem to be nice people . She was nice . She used to walk her little girl down the street all the time . ' Another neighbor , Regina Sarvey , told WTAJ 'What woke me up was the flash of the cameras it was so bright and they were taking pictures over at this neighbor 's yard . I 've seen them walking their dog and I 've seen their little kids . Nathan Britton , who also lives in the community , told the television station ' I saw some flashing lights and what not out back here and I was looking around and saw they were across the street and there was fire trucks and an ambulance . ' Crime : Police say Zickefoose 's husband tried to take the gun away from her , but she shot him in the chest . She remains jailed Tuesday on a charge of criminal homicide .
Police say 31-year - old Trista ##ff assaulted her year - old husband , Greg , on Sunday night at their duplex apartment in sunny ##vale . Authorities alleged that the couple had separated after smoking the drug together . Trista Zickefoose later heard a noise that she believed was from an intruder , police said .