One of the two watchmen accused of killing a youth from a housing complex they were employed at on May 29 has been arrested, Mira Bhayander Vasai Virar police said on Friday.

In the early hours of that day, Abhisekh Mansingh, a resident of a housing complex in Mira Road, had an altercation with watchmen Subhash Pandey and Amit Tiwari, both of whom fled after stabbing him to death, an official said.