50年前，教堂礼拜者谋杀了自己的姐姐吗？

警方正在重新调查在 Pembrokeshire 家中被杀害的兄妹 Patti 和 Griff Thomas 的案件。50 年前，这起案件一度被认为是谋杀自杀，但现在警方正在重新审视案件，因为他们收到了一份关于该案的新线索。

Original Title: Did chapel-goer murder his sister 50 years ago?
Article Content:
The killing of siblings Patti and Griff Thomas at their Pembrokeshire home is being reviewed by police.

Original article: https://www.bbc.com/news/articles/c33nn45dp28o