Excerpt:
Investigators in Houston now say an Iranian activist was gunned down by Jordanian immigrants in 2012 because they believed she helped convert their Muslim daughter to Christianity.
Gelareh Bagherzadeh, a 30-year-old researcher at MD Anderson, was shot to death outside her parents home in the Galleria area.
Ali Irsan, 57, is charged with capital murder in the case. His wife, Shmou Ali Alrawabdeh, and their 21-year-old son, Nasim, are charged with murder.