he followed lubov kovalyova's struggle for a pardon for her son.g: lukashenko has never pardoned anyone. but in this case, he could have done it. this boy had no blood on his hands. he was found guilty only of aiding and abetting. but they shot him dead. he should have had a chance for a pardon. reporter: three men were executed in belarus again last year. president lukashenko rejected their appeals and petitions for clemency. lubov kovalyova intends to continue her struggle against the death penalty in belarus. lubov: there should be no more cases like ours. innocent people should no longer be condemned just because someone thinks they have an advantage from it. i don't want more mothers to suffer. reporter: lubov kovalyova hopes to learn some day where her vladislav now lies. then she'll have a place to take her grief. anchor: a very sad story. do get in touch if you have comments about that, or any of the stories on today's program. but now to our series "europe's squares," where we take you to some of the most interesting piazzas and plazas in