Everything you need to understand or teach Small Vices by Robert B. Parker.
Parker's major theme is, as always,Spenser's desire to learn the truth about a murder and to see some kind of justice done. Spenser's investigation of the Melissa Henderson murder at Pemberton leads him into an upper class world where crime may be swept under the carpet and a poor criminal from the inner city can be framed for a rich college boy's crime.
Spenser's investigation also leads him into the secondary problem...