<P> Mathilda quickly discovers that Léon is a hitman . She begs him to take care of her and to teach her his skills, as she wants to avenge the murder of her four - year - old brother . At first, Léon is unsettled by her presence, and considers murdering her, but he eventually trains Mathilda and shows her how to use various weapons . In exchange, she runs his errands, cleans his apartment, and teaches him how to read . In time, the pair forms a close bond . Mathilda often tells Léon she is in love with him, but he refuses to reciprocate . </P> <P> When Léon heads out for an apparent assignment, Mathilda fills a bag with guns from Léon's collection and sets out to kill Stansfield . She bluffs her way into the DEA office by posing as a delivery girl, only to be ambushed by Stansfield in a bathroom; one of his men arrives and announces that Léon had just killed one of the corrupt DEA agents in Chinatown that morning . Léon, after discovering her plan in a note left for him, rescues Mathilda, shooting two more of Stansfield's men in the process . An enraged Stansfield confronts Tony, who is violently interrogated for Léon's whereabouts . </P> <P> As Mathilda and Léon recover from the ordeal, Mathilda attempts to seduce Léon . Léon refuses, instead opening up about how he became a cleaner; when Léon was young in Italy, he was in love with a girl from a wealthy family . The two made plans to elope, but when the girl's father discovered their relationship, he killed her out of anger and escaped justice . Léon killed the man out of revenge and fled to New York, where he met Tony and trained to become a cleaner . </P> <P> Later, while Mathilda returns home from grocery shopping, a NYPD ESU team sent by Stansfield captures her and attempts to infiltrate Léon's apartment . Léon ambushes the ESU team and rescues Mathilda . Léon creates a quick escape for Mathilda by smashing a hole in an air shaft; he then reassures her, tells her that he loves her, and thanks her for giving him "a taste for life", moments before the police blow up the apartment . In the chaos that follows, Léon sneaks out of the building disguised as a wounded ESU officer; he goes unnoticed save for Stansfield, who follows him and shoots him in the back . As he is dying, Léon places an object in Stansfield's hands that he says is "from Mathilda" before succumbing to his wounds; Stansfield discovers that it is a grenade pin . He then opens Léon's vest to find a cluster of active grenades which detonate, killing Stansfield . </P>

Who is the little girl in the movie the professional