The attorney for a Medford teenager accused of fatally stabbing an Ecuadorean immigrant tried Tuesday to cast doubt on parts of a statement taken by the lead Suffolk County police detective in the case.

Defense attorney William Keahon spent much of the day cross-examining Det. John McLeer, a prosecution witness, and asking how McLeer had questioned defendant Jeffrey Conroy, 19.

Conroy, facing charges of second-degree murder and first-degree manslaughter as hate crimes, was arrested with six other teens for the Nov. 8, 2008, stabbing death of Marcelo Lucero, 37, of Patchogue.

Keahon asked how McLeer took Conroy's statement.

"These are Jeff's thoughts," McLeer said, explaining he wrote out the statement as told to him by Conroy.