Mexico City police have launched a massive manhunt for the mother-in-law wanted for the cold-blooded caught-on-video “execution” of a stunning former beauty queen. The suspected killer, identified as Erika Maria “N” in news reports, went on the lam shortly after the April 15 shooting death of Carolina Flores Gomez, a 27-year-old former Miss Teen Universe, reportedly because she was jealous of the victim’s hold on her son, Mexico’s El Universal reported . Former Miss Teen Universe, Carolina Flores Gomez, 27, was shot dead in her home on April 15. JamPress The chilling video inside Gomez’s posh home in Polanco, one of Mexico’s most exclusive and expensive neighborhoods, shows the former pageant winner from Baja California walking to the back of the home to get her mother-in-law a drink of water, according to several outlets. Maria is seen following her before six shots are heard in the background.…