detective wilbert thought he might be standing at a crime scene., that's fine." >> reporter: the detective was struck by her nonchalant response but still wasted no time in telling his investigator. >> "make sure the -- the entire crime scene unit gets here as quick as possible." >> and while we were waiting for the crime scene unit to show up, she offered us food, a drink, the bathroom. i remember eating grapes with her in her kitchen. and, like, everything was normal. >> reporter: kathleen also talked about her gardening efforts. they put in some new mulch to spruce up the yard for the upcoming open house, she said. >> it was odd. and it was an area of interest >> reporter: it seemed like she was just trying to make small talk but when the crime scene investigators showed up -- it was one of the first places they checked. one of the forensic detectives put on protective gloves. he had put his hand into the mulch. and in fact, came up with -- with blood on the protective glove. not a few smatterings. lots of blood. and it tested human. >> coming u

wilbert steers the plane towards a landing strip on a friend's property.an hits record on his phone. >> i just wanted to take video of the sunset and of the landing because i never had before. i thought it was going to be a normal, you know, landing as usual. >> instead he catches a terrifying moment on camera. >> holy [ bleep ]. >> the plane clips a telephone wire sending them into a nosedive towards the grass. >> i just braced myself. it was very, very scary. i literally thought i was going to die. i was just, like, okay, here we go. this is it. >> the wing hits the ground first. then the nose crashes down at a 45 degree angle. >> ian's phone continues recording audio in the frantic moments after the crash. >> holy [ bleep ]. holy [ bleep ]. are you okay? grandpa, are you okay? >> my first thought was, wow, this really just happened. how am i not dead, and then i looked at myself. i was, like, okay, everything is working. you know, my body is intact. grandpa, are you okay? grandpa, are you okay? okay. holy [ bleep ]. >> i was just like, okay, we got to g

wilbert was one of 13 children, seven boys and six girls. six of the seven boys served in the military. wilbert's brothers and sisters remember him as a selfless, caring person. he was always willing to help out a neighbor. he was dedicated to caring for his aging grandparents and he was extremely protective of those he loved. wilbert died taking charge of his platoon after his platoon leader was killed. his sister pauline says that this was just the kind of person he was -- always willing to put the needs of others before his own. wilbert was pauline's best friend. lowell hardmire. lowell was from mont. he was born on february 16 1949. he served in the army's 196th light infantry brigade. he died on june 10 1970. he was 21 years old. lowell was the youngest of two sons. he was a blue-eyed boy who loved horses and growing up on his family farm and ranch in the prairie hills. in 1968, lowell graduated from high school and enrolled in the national electronics institute in denver before serving in the army. in vietnam lowell had various duties