Boats, divers and helicopters were deployed to search the river Tuesday night when the boy told police his 17-year-old friend had fallen into the river from a stolen boat and never resurfaced.
The robber tried to fire his weapon but apparently jammed.
Police in Haverhill are looking for a man they believe exposed himself to women six separate times over the past month.
Some heated words led to a melee between Haverhill and Methuen high school students.
A Haverhill man allegedly put a police officer in a choke hold during a dispute over a parking ticket on Tuesday.