welcome back to dateline. lynn reister was murdered in the prime of her life. her brother-in-law confessed to killing her but was he the only one who wanted her dead or was her husband also planning to kill her? here s andrea canning with the conclusion of deadly devotion. to take your wife, the mother of your child and the fact that she was carrying his unborn child. i don t even have the words of how sick what a monster. reporter: roger reister didn t look like a monster when he went on trial for criminal solicitation. but lots of witnesses said he talked about killing his wife to anyone who would listen. well, now 12 jurors were listening. and it took them all of three hours to find him guilty. when you hear guilty my legs went out from underneath me. my lawyers actually had my arms. reporter: roger was sentenced to life in prison. he spoke to us from behind glass at a texas state prison. the prosecutor said in his
Transcripts for MSNBC Dateline 20220103 05:22:15
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Transcripts for MSNBC Dateline 20220103 05:41:15
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yeah. but then, of course, later we found out that she was actually pregnant. reporter: and telling people the father was roger. a lot of women would have cashed in the marriage at this point. but not lynn. she let roger come home. does lynn still want to make things work with roger despite this bombshell? she does. reporter: why? i think probably because of triston. i think that it was important to lynn that her family stay together and that triston be raised with, you know, a mother and father, and that she would work it out. reporter: and they were working on things. she was, yes. reporter: marriage counseling? they did try marriage counseling, yes. reporter: they had moved back in together? yes. reporter: police heard that after roger reconciled with lynn, her car was vandalized. april was never charged, but at the time lynn and roger told police they thought she did it. so this is very complex. very. reporter: this april situation. police had to put thi