A court in Italy has sentenced a member of the left-wing militant group the Red Brigades to life in prison.
Cinzia Banelli collaborated with the Italian authorities
Laura Proietti was convicted for her involvement in the killing of a government advisor in 1999.
A second member of the group, Cinzia Banelli, received a 20-year prison sentence for her part in the shooting of Massimo D'Antona.
Correspondents say the sentences are harsher than expected as both women had publicly expressed remorse.
Mr D'Antona, a labour ministry consultant, was shot dead on the street near his home in Rome in 1999.
Laura Proietti, 32, and 41-year-old Cinzia Banelli admitted belonging to the extreme left-wing group behind the murder, but said they had since severed ties with the organisation.
D'Antona's widow, Olga, said she was pleased by the sentencing.
"It's a tough sentence which takes into account the gravity of the act," she said according to Agence France Presse.
Ms Proietti's lawyer said she would appeal the prison term. Fifteen other suspected members of the group are on trial for their alleged involvement in the same crime.
The ultra-left Red Brigades terrorised Italy during the 1970s and 80s, with a wave of attacks and bombings blamed for killing 415 people.
Most of their leaders were eventually arrested and sentenced to long prison terms.
But the group re-emerged with the murder of consultant Massimo D'Antona. He was killed at a time when Italy was introducing new reforms aimed at creating greater flexibility in the labour market.
Three years later, a second labour consultant, Marco Biagi, was gunned down in Bologna.
Last year officials said they had discovered lists of key officials who were potential targets of the group, including Italian Prime Minister Silvio Berlusconi.