Hurry, Hurry!

Pablo and Meca, two young urban delinquents, live from day to day by a series of robberies, mostly car thefts. During one such robbery, the carâs owner catches the two in the act. They roll up the windows and lock the doors to prevent intrusion. Helplessly trapped inside the troublesome vehicle by a mob that has now closed in around them, the pair forces a clear path through the crowd by brandishing a gun, before making their escape into the street. However, the stolen car only proves to be the first step in a more elaborate scheme. Spotting an attractive waitress named Ãngela at a local cafeteria, Pablo is immediately captivated by the receptive (and equally restless) young woman, who soon becomes his lover, promising to stay together always. Pablo teaches Ãngela to shoot a gun and, subsequently, inducts her into their gang after an afternoon of makeshift target shooting.
The gang now consists of four members: Pablo, Meca, Ãngela, and Sebastian or "Sebas". Sebas has joined the group to help in a series of more ambitious thefts, but he is initially unhappy with the presence of a girl in the band. Pablo, with Mecaâs support, assures him that Ãngela can hold her own.
In the first robbery, that of a factory office on the outskirts of Madrid, Ãngela, disguised as a boy with a mustache, serves as a lookout. In the second holdup, she shoots one of the guards who has fired at the gangâs car. At the conclusion of each of these robberies, Meca brings the getaway car, usually a stolen one, to a deserted area and set it ablaze. He stands by the side of the fire and enjoys viewing the flames.
Alternately spending their idle time at discothÃ¨ques and video arcades, acting on their impulsive whims, and succumbing to the intoxication of drug use, the emboldened quartet begins to stage an ever-escalating series of hold-ups throughout the city.
Their share of the money from the two successful robberies enables Ãngela and Pablo to buy a new apartment on the outskirts of the city. It is from this location that the gang plans a third robbery, the assault on a branch bank in one of the more congested middle-class neighborhoods of Madrid. During this robbery, Sebas kills one of the guards and is, in turn, gunned down outside the bank by a squad of police who have surrounded the area. Pablo, Meca, and Ãngela manage to make a getaway, but Pablo has been seriously wounded and is bleeding profusely.
Ãngela brings him back to the apartment to nurse him while Meca disposes of the getaway car in the usual manner. However, the black cloud of smoke attracts a police helicopter and Meca is killed as he resists arrest. Understanding the seriousness of Pabloâs wound, Ãngela calls a doctor who, upon arriving at the apartment, confirms the gravity of Pabloâs condition. He has been shot in the liver and must be brought to a hospital if he is to survive. Refusing, she offers him a large bundle of cash if he will treat Pablo right there. Taking the money in his black satchel, the physician promises to return shortly with instruments for surgery. Hours pass, but the doctor does not come back. Pablo, who remains unconscious, lies immobile on the bed. He stops breathing while Ãngela sits in the darkened room staring at him. When she realizes he is dead, she fills her own duffel bag with the remaining money from the robbery and walks of the apartment. She disappears into the shadows of the approaching night walking towards the city.

Question: who kill one of guards?
Answer: Sebas kills one of the guards; Sebas kills one of the guards