HOUSTON – Investigators on Friday searched the abandoned Houston lab from where a teen is accused of stealing mercury and then spilling it in several locations. Video from SKY 2 showed people in protective gear walking near the Geochem Laboratories building in west Houston. A couple of blue barrels were also seen sitting in front of a large truck. Investigators have said that Melder inadvertently spilled the chemical in several places in the process of trying to sell it, which resulted in a massive decontamination effort that included dozens of people and several businesses. Houston police would only confirm that Friday’s investigation is connected to the spills.