 around 40 percent of cases and almost half of cancer deaths could have been prevented if patients stopped smoking or lost weight. The research finds alcohol consumption, physical inactivity, and not eating enough fruits and veggies are also among the top five reasons for cancer deaths in the US. A search is underway for a person of interest after a sheriff's deputy is killed in an ambush in the Houston area. Chief Deputy Mike Lee. Detectives in the area went to his location