The youth fled the Live Well De-addiction Centre at Madhupur, a day after videos purportedly showing abuse of inmates at rehabilitation facilities in the district went viral on social media.
A man was arrested in connection with the incident and questioned.
Over 30 persons belonging to the Adivasi community were killed by the outlawed National Democratic Front of Bodoland (Sangbijit faction) or NDFB-S militants at four places in Assam ob Tuesday evening.
The SP said as per preliminary inquiry, the four men had allegedly stolen two cows from a person named Sankat Tanti and were fleeing in an auto van which had no number plate.
