But For the Grace by Peter Grainger

In this second book of the DC Smith series, Smith is the lead investigator in the death of Joan Riley who lived at Rosemary House, a retirement community. Did Joan die by her own hand or was someone else involved? Joan was part of a quartet of friends, and another of the friends, Elspeth, died a few months ago. Could Elspeth's death be considered suspicious also? But For the Grace is another solid police procedural from author Peter Grainger.