Iowa family killed by gas poisoning while on vacation in Mexico, authorities say
Authorities in Mexico say autopsies show Kevin and Amy Sharp and their two children inhaled some kind of toxic gas inside the home they rented. Family and friends are now demanding answers about how this could have happened. NBC's Blake McCoy reports from Creston, Iowa.
4 Americans among 5 dead in Costa Rica rafting accident02:40
More than 1,200 tips pour in for missing Jayme Closs02:21
Orlando police searching for suspect in foiled bank robbery00:36
Trump says US will withdraw from nuclear arms treaty with Russia01:54
Saudi Arabia acknowledges Jamal Khashoggi died in consulate, denies responsibility02:39
Migrant caravan of 7,000 continues through Mexico toward US02:04