I’ve read

No spoilers showing.

The best friend · Violent Delights

Declan

At Torrin’s side since they were boys in Belfast. Trusts no one Torrin brings home.

Who he is

Declan has been at Torrin’s side his whole life and is family in everything but blood. He is the muscle, the driver and the one who says what Torrin does not want to hear.

In Savior Savior spoilers

He distrusts Aria from the start and wants her gone when her lie comes out. He and Torrin come to blows over it in Belfast. It is Declan who tells her to ask Torrin about his father.

By the end he is on her side. He is the one who hands Torrin her letter.

In Exile Exile spoilers

His parents were Sean and Moira O’Connor. Sean was Cormac Walker’s right-hand man. Declan shoots Enya Walker when she has a gun to Torrin’s head, survives the car chase that should have killed him, and stands as best man.

Savior spoilers are hidden here.

Exile spoilers are hidden here.

Violent Delights

Read the duet.