'The Shape of Ruins,' by Juan Gabriel Vásquez

From The Washington Post:

On the afternoon of April 9, 1948, an assassin drew a pistol on a downtown Bogota street and took the life of Jorge Eliécer Gaitán, a charismatic, populist political icon who was one of the great South American orators of his time.

An enraged mob quickly formed, chasing down the presumed killer, a stonemason named Juan Roa Sierra, and yanking him into the street where he was pummeled to death. Hundreds, or by some estimates thousands, died in the riots that followed, a searing moment in Colombian history dubbed “El Bogotazo” that ushered in an era of extraordinary violence known as “La Violencia.”

read rest of review by Manuel Roig-Franzia @ Washington Post