Jachym, 21, of Granby, Massachusetts was fatally shot on June 30 while in Washington, D.C. for a congressional internship.

Eric Tarpinian‑Jachym, 21, was shot last Monday around 10:30 p.m. when gunfire broke out near the intersection of 7th and M streets in the nation’s capital, police said.

Police investigating last week’s shooting death of a University of Massachusetts Amherst student interning on Capitol Hill said Tuesday that the monetary reward for information in the case has increased.