Londongrad: An Artie Cohen Mystery (Artie Cohen Mysteries)

By far Reggie Nadelson's best story takes Artie Cohen--Russan-born New
York police detective with a complex past--from New York to London to
Moscow in pursuit of the killers of the daughter of his close friend,
Tolya. At a time when London is inflamed with the death of Alexander
Litvinenko, Artie faces imminent dangers as well as unexpected ones from
his deep past.