Boston man drowns in Costa Rica; brother missing

Darnell Zimmerman's body was found around 2:10 p.m. Sunday, said Rafael Angel Araya Cordero, regional director of the police in the western province of Guanacaste. Authorities are still searching for Jermaine Zimmerman, said Araya Cordero.

The brothers graduated from Scituate High School -- Darnell in 2002 and Jermaine in 2003, where he was named to the honor roll several times – and were devout Jehovah’s Witnesses, said their sister Sarcha Auguste. They belonged to a congregation in Jamaica Plain.

Darnell worked in a physical therapy clinic and Jermaine was an automotive technician, she said.