'They cut my son's head off and they took my son's head':
"They cut my son's head off and they took my son's head. Who would do that? I don't understand," his father told KTRK. "I couldn't even see my son. They won't even let me see him."
Alexander was sleeping in his truck under a bridge in Angleton.
The 24-year-old was trying to save up money for bills working at a local chemical plant as a pipe fitter.
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