A couple who "defriended" a woman on Facebook were murdered in their home in an attack a US sheriff described as "the worst I've ever seen".
Police in Tennessee have arrested the jilted woman's father and another man and charged them with murder.
Billy Clay Payne and Billie Jean Hayworth were killed last month after they deleted Jenelle Potter, the daughter of one of the suspects, from their "friends" list.
Both were shot in the head and Mr Payne's throat was cut.
The couple's eight-month-old baby was found in the mother's arms, unharmed, when the bodies were discovered.
"It's the worst thing I've ever seen," said Johnson County Sheriff Mike Reece, who has worked in local law enforcement for 27 years.
"We've had murders, but nothing like this. This is just senseless."
Marvin Enoch "Buddy" Potter Jr, 60, and Jamie Lynn Curd, 38, were arrested this week and charged with the murders.
The case is not the first involving violence linked to Facebook. Last year in Iowa, a woman was arrested on accusations of setting fire to a friend's garage after she was defriended on the social network site, local media reported.
In Texas, a man was accused of hitting his wife after she failed to "like" a Facebook post he wrote about the anniversary of his mother's death, according to media reports.
美国田纳西州的一对夫妇在Facebook上与一名女子解除了好友关系，却没想到在家中惨遭谋杀。美国一位警长说，“这是我见到过的最糟的案子”。
田纳西警方已经逮捕了这位被解除好友关系的女性的父亲和另一名男子，控告他们谋杀罪。
比利•克雷•帕尼和比利•吉恩•海沃兹与詹妮尔•波特解除好友关系后，上月惨遭谋杀。波特是其中一位嫌疑人的女儿。
两名死者都被人枪击头部，男性死者还被割喉。
当他们的尸体被发现时，两人8个月大的孩子还在母亲怀中，孩子没有受伤。
约翰逊县执法官迈克•瑞斯说，“这是我见过的最糟糕的案件。”他已经在当地的执法部门工作了27年。
“我们遇到过谋杀案，但从没有过这种案件，真是愚蠢。”
波特60岁的父亲马文•伊诺克•波特与38岁的杰米•林恩•克德于本周被捕，被控谋杀罪。
此案并非与Facebook网站有关的起暴力案件。据当地媒体报道，在去年，爱荷华州一名女子被人在社交网站上解除好友关系，而后纵火焚烧该人车库，并因此遭到起诉。
另据媒体报道，德克萨斯州一名男子曾因为妻子不“喜欢”他在Facebook网站上发表的一篇母亲去世周年纪念帖而殴打妻子。
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