Spent 40 years at Library of Congress
Railway police claim upbeat Aaron Salazar was suicidal
Justices asked to take up two cases on non-discrimination law
Police release video of 'person of interest' in 14th Street incident
Torin Hodgman hoped to make a statement
Trip coincided with IDAHOTB commemorations in Havana
The continent's celebration takes place in June
Florida Republican to leave Congress at end of term
Official launch to take place in Silver Spring on Thursday
Volunteers spent Memorial Day with Ricky Santiago