PORTSMOUTH, N.H. — Twin brothers have been combing the shoreline for at least a week as authorities search for the body of a University of a New Hampshire sophomore who disappeared Oct. 9.
Perry and Conrad McKinney, 70, said they feel compelled to assist in the search for 19-year-old Elizabeth ‘‘Lizzi’’ Marriott of Westborough, Mass.
The Portsmouth Herald reported that Perry McKinney runs the boat launch at Peirce Island for the city of Portsmouth.
Searchers have focused on the water surrounding the area.
Conrad McKinney is a private detective. Both grew up in Portsmouth and know the inlets and coves well.
Perry McKinney usually goes walking along the coast for his health, but now he said his early-morning walks have taken on new meaning.
The brothers are looking for anything unusual, such as an article of clothing or piece of jewelry that might be evidence in the case.
‘‘We’ll be out here for a long time,’’ Conrad McKinney said.
‘‘We’re doing the areas you can’t see from a plane or get to with a boat. We’re just looking for anything out of the ordinary. It’s a tragedy for the parents,” he added. “I can’t imagine what they’re going through.’’
A UNH graduate, 29, was arrested Oct. 13 and charged with killing Marriott. Seth Mazzaglia of Dover was arrested the day after police searched his Dover apartment. He is charged with second-degree murder and faces a probable cause hearing on Monday.