First, they were tailed by the operatives who pretended to ask directions so they could get close to Nikki's residence. On the next day, a vehicle tailed Arguelles while he was on the way home from Nikki's house.
Una, binuntutan sila ng mga operatiba at nagkunwaring nagtatanong ng direksyon para makalapit sa tinutuluyang bahay ni Nikki. Kinabukasan, binuntutan ng sasakyan si Arguelles nang pauwi siya mula sa tinutuluyan ni Gamara.