But when Rogue Wave frontman Zach Rogue lost his job, the subsequent trip he took to visit friends in New York proved productive.

NPR: Rogue Wave On World Cafe

Specifically, to what extent can the quality of service on second and subsequent visits be expected to vary based on the size of the tip on the first visit?

ECONOMIST: Mexican stand-off

Mr. Kelly said investigators in Boston and New York are looking into at least one visit by the younger Mr. Tsarnaev to New York last November, as well as possible subsequent visits.

WSJ: Suspects Said To Have Had 'Party' Plans