People in Glass Houses - Tim Hemlin

Congressional candidate Chip Gunn figures he has the election in the palm of his hand.  But when Gunn's guard is stabbed during a high-profile fund-raising event catered by chef and amateur sleuth Neil Marshall, all hell breaks loose.

Things only get worse when the victim vanishes and Neil's assistant is left holding a bloody knife.  Quickly, a lethal mystery unravels and Neil and his friends learn that people in glass houses don't throw stones, but shoot to kill . . .