"friends for life"

so my mystery is from dateline its called "friends for life" and this mom lost her husband his name is bryn was murder and they think it was a robbery murder and this is bryn 3rd time of marriage and they think it could been one of his exs  and he has also had sex with other women while he is married to his wife so it could be them ans he got shot 4 times in the back. so 48 hours later they find his body on this country road called wagon rail road. they think he went on this road for one reason was to have sex with his ex wife who was married to shane and they think he killed him because he was frustrated.