a neighbor shares a wall with azim's house. police knocked on her door. >> they told me get out, get out as soon as i can. >> reporter: as swat responded, a fourth person messaged police, telling them that he was trapped inside the house. meanwhile a fire began to burn. today you can see the aftermath of the flames from the neighbor's deck. officers first responded to the home after two brothers called 911, reporting they'd be shot inside. azim's friend telling me, those victims were the suspect's own siblings. >> what i think happened was accidental shot to one. other one wanted to stop it, then he got shot. even the last message he sent to me on snapchat was i love your energy, i love when you're happy. i just want you to be happy. >> reporter: police also confirming to me tonight that the officer who fired that deadly shot is a 16-year veteran of the fairfax county police department. >>> a prince george's county police officer accused of taking inappropriate photos of women has pleaded guilty. he admitted to taking upskirt p

he >> reporter: she says azim was always willing to help neighbors with car problems. neighbors tell me the only issue they've ever had with that house is occasional loud music. as for the officer who shot and killed the suspect, we've learned tonight he is a 16-year veteran of the fairfax county police department. he is on administrative leave pending the outcome of an investigation. >>> now to a plea for help from the district's interim police chief. he would like answers in what he saw calls a senseless crime, a crime that took the life of a woman in her wheelchair. vivian marrow was shot and killed yesterday in southeast d.c. >> reporter: this is a case that stunned our city. a 68-year-old woman in her wheelchair, on the way to a corner store, shot in the to help solve this case of murder. >> i frequently go to meetings across this city and people frequently ask me how they can help. this is one of those times when we need your help. >> reporter: at the place where vivian marrow was murdered, on a pole above the murder scene, a d.c. police crime camera. a bullet ho