collector of injustice
n.— «Federal agents investigating the April 16 shootings at Virginia Tech think Seung Hui Cho displayed many of the same characteristics of a criminal behavioral profile called the “Collector of Injustice,” or someone who considers any misfortune against him the fault or responsibility of others.» —“Va. Tech Shooter Seen as ‘Collector of Injustice’” by Sari Horwitz Washington Post June 18, 2007. (source: Double-Tongued Dictionary)