It turns out that Mohammad Iqbal, whose wife, Farzana Parveen, was recently stoned to death by her own family outside the courthouse in Lahore, had earlier murdered his first wife, in order to marry his new love, Farzana. He was never prosecuted for the killing.
http://www.cnn.com/2014/05/29/world/meast/pakistani-honor-killing/
http://www.cnn.com/2014/05/29/world/meast/pakistani-honor-killing/