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"48 Hours" preview: Self-defense or murder?

Name: "48 Hours" preview: Self-defense or murder?
Uploaded: 2016-03-18T10:09:08-0400
Duration: 2 min 28 s
Description: An FBI veteran claims he had no choice but to shoot his wife after she came at him with a knife. Was it self-defense or murder? "48 Hours" correspondent Susan Spencer joins CBSN with insight and a preview of "Eliminating the Threat?"

An FBI veteran claims he had no choice but to shoot his wife after she came at him with a knife. Was it self-defense or murder? "48 Hours" correspondent Susan Spencer joins CBSN with insight and a preview of "Eliminating the Threat?"