A teenage girl and her boyfriend are currently being charged after a bizarre video showed the two laughing about “murdering somebody” and having lots of sex. Prosecutors are using the shocking video obtained by KLAS to charge Aaron Guerrero, 18, and his 16-year-old girlfriend, Sierra Halseth, the daughter of a former Nevada state senator. “Welcome back to our YouTube channel … Day 3 after murdering somebody …” Guerrero, with a smirk on his face, says into the camera. “Whoa!” Halseth responds, giggling, “Don’t put that on camera.” Guerrero says, “It was worth it,” before kissing his girlfriend on the forehead.(snip)...