SPOILERS for Keep Her Safe by K.A. Tucker

Noah's uncle Silas, a District Attorney,  had a thing for young girls he was ultimately the reason why Abe was killed.  And he realized that his sister was about ready to spill the beans about him because the guilt was eating her alive. Rather than let that happened, he killed her making it look like a suicide.

Oh and of course Noah and Gracie get together. 

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