Creative writing (story) part 2

Finally he told Elena about it
“Hey El, is that car following us?”
“Huh?” she turned to his brother and then gazed at the other car. It did seem that it was following them because everytime they turned the car would turn in their same direction. However she did not worry.
“It must be someone from school as well”, she said.
“I hope so, but it has been following us for a long distance”, Blake said with a worried tone in his voice.

They were almost at school, and Blake drove so that the weird car wouldn’t follow them anymore. In the last minute, the other car turned differently, and they finnally got to school.
“See? It was just a coincidence”, said Elena as she grabbed her bag and got off the car.
“Sure, I was just kind of scared that’s all” said Blake as he also got off the car. He said that to his sister but the uneasy feeling about that morning was still there, stronger than ever.
Then they both walked together to the high school building, greeting friends as they met them in the way.

What they did not know was that the other car had in fact been following them, and it had turned only to make them less suspiscious. It had parked only a block away from the school and it had four men, all of them strong, and all of them carrying guns. They got off the car and walked silently to a hiding spot near the school gate. Then, one of them pointed a gun with a silencing device to one of the guards, and he shooted. The guard dropped dead and the other guard came running toward his dead colleague. Then, the criminal killed the other guard as well, and nobody heard the gun. The criminals now had a free way into the school.

The school was one of the biggest private schools in Bogotá. It had primary, elementary, middle school and high school buildings each of them farther or nearer to the gate. The primary building was the one located nearest of the gate, and the high school building was the one farthest away from the gate. The criminals walked normally and without disguises towards the high school building, and if they crossed with anybody on their way, they would just wave at them casually and keep walking.

When they got to the high school building they went in the bathroom and put on their black masks so as not to be recognized. Then, they prepared their guns so that they would make no noise, and finnally, they took out a bottle of a strange liquid, and filled two injections with it, which they put in their pockets. When everything was ready they went almost crawling to the high school office, and came in without the woman in charge noticing.
She was an old lady, and she was alone in the office when suddenly, the masked men came out from their hiding spot, pointed a gun straight at her face and said:
“If you scream you die, tell us where can we find Blake and Elena Nogales!”