Cowboys backup fullback Nicky Sualua, who was with Tuinei on the morning he died, led Dallas and Plano police to the apartment.
Ecstasy is a stimulant chemically related to both amphetamine and mescaline.
When mixed with heroin, ecstasy can be fatal, experts say. Sualua told police that after they left Tuinei's home, they drove to the apartment, where Tuinei told him he was going to take heroin. According to an affidavit filed to support a search warrant, Tuinei went into a bedroom and came out later on the verge of unconsciousness and eventually stopped breathing. Sualua said Tuinei began breathing again after he performed CPR on him. But Sualua said Tuinei remained unconscious, and he had to drag the 314-pound Tuinei to the lineman's customized 1933 Ford.