Comment by ksaxena

There is a huge mistake in this reasoning! Time dilation goes to infinity at the center of the black hole - at the singularity, not at the event horizon! The event horizon could be millions of miles (many AUs) away from the singularity. Near the event horizon, her husband is likely to be falling rapidly into the black hole and is not going to be stuck indefinitely. So, it's Murder 1, immediately.