An Argentine court has officially identified the remains of a French nun Léonie Duquet, whose body was exhumed in July. The positive identification, announced two weeks ago, adds new evidence to the case against former Navy captain Alfredo Astiz, nicknamed "the Angel of Death". Astiz is accused of kidnapping and murdering French nuns Leonie Duquet and Alice Domon, along with five mothers of disappeared persons, in a roundup known as "The Santa Cruz church kidnappings". He was arrested last year after the Supreme Court overturned an amnesty law protecting him inside Argentina's borders. In France, Astiz was convicted in absentia for the murder of the nuns and sentenced to life imprisonment. Murder charges also await him in Italy and Sweden, but extradition requests have been postponed pending his upcoming trial in Argentina. During the dictatorship, the Santa Cruz church was a gathering point for a group of mothers of the disappeared. Astiz infiltrated the group, and after attending a few meetings, denounced the group's leaders to his fellow Navy death squad members. Duquet was last seen alive a couple of days after her kidnapping, when she was being tortured in a clandestine prison camp set up in the basement of the Navy Mechanics School (ESMA). Based on all available evidence, Duquet was then drugged and forced to climb into a Navy cargo plane from which she was thrown alive into the ocean. Her badly decomposing body was found washed up on a beach and was buried in a nameless grave in a municipal cemetery. Last month, DNA tests finally proved her identity. Like Duquet, more than 4,000 presumed "death flight" victims disappeared between 1976 and 1979 after being held at ESMA. So far Astiz and 15 other ESMA navy officers have been arrested pending trial, and another 50 or so are under judicial investigation.