Season of the assassin - Thomas Laird

Jimmy Parisi's back...and so are the bad guys; Somebody has butchered a whole hostel floor of student nurses - but the murders took place in the 1960s and the investigating officer was Jake Parisi, Jimmy's father. He quickly located a prime suspect, Carl Angelin, but then the witnesses all disappeared, the FBI got involved - and Jake died in a tragic accident. And then Angelin disappeared too.

Thirty years on and Jimmy, like his father before him, is a homicide detective. A frighteningly similar massacre occurs on his patch and so the hunt for Angelin begins again, but this time it's a race against time. Both Angelin and Parisi desperately need to find the sole surviving witness of the original massacre who has for three decades been kept hidden by the government in a remote mental institution. She can testify to Anglin's guilt so he must silence her for ever - while Parisi needs her to give evidence, so justice can at last be done for the seven victims and for Jake, his father.