Police cars park in front of the house where an 18-year-old boy killed a robber in Houston, the United States, Oct. 4, 2013. The teenage boy was studying while finding two robbers invading the house on Friday. He shot one dead and the other escaped. (Xinhua/Song Qiong)
A policeman receives interview near the house where an 18-year-old boy killed a robber in Houston, the United States, Oct. 4, 2013. The teenage boy was studying while finding two robbers invading the house on Friday. He shot one dead and the other escaped. (Xinhua/Song Qiong)
Policemen stand guard in front of the house where an 18-year-old boy killed a robber in Houston, the United States, Oct. 4, 2013. The teenage boy was studying while finding two robbers invading the house on Friday. He shot one dead and the other escaped. (Xinhua/Song Qiong)
Policemen stand guard in front of the house where an 18-year-old boy killed a robber in Houston, the United States, Oct. 4, 2013. The teenage boy was studying while finding two robbers invading the house on Friday. He shot one dead and the other escaped. (Xinhua/Song Qiong)
Policemen investigate in front of the house where an 18-year-old boy killed a robber in Houston, the United States, Oct. 4, 2013. The teenage boy was studying while finding two robbers invading the house on Friday. He shot one dead and the other escaped. (Xinhua/Song Qiong)