the father of a 10-year-old boy whose body was found in the mississippi river over the weekend , sits in the back of a police vehicle after he was arrested .
monday , less than a month after he appeared at a vigil tearfully pleading for his safe return .
pierre collins was phootgraphed monday being placed in the back of a squad car in handcuffs and taken away from his apartment complex in crystal .
he will be processed and taken to the hennepin county jail .