"LIMA, Peru -- Joran van der Sloot is spending the night at the headquarters of the Peruvian criminal police after being interrogated Saturday about the killing of a Lima student."
"....Initially said to have been stabbed, a forensic report later showed she had suffered severe blows to the head and a broken neck...."
You asked in another thread where Joran was being held; this article says that he spent the night in the headquarters of the Peruvian Criminal Police, after being interrogated on Saturday.