Pierce County sheriff's spokesman Ed Troyer says the two were not recognized by deputies. The medical examiner's office is conducting autopsies Friday and checking fingerprints.
The masked intruders were shot dead Thursday morning when they forced their way into a Puyallup home with an illegal marijuana grow operation in the attic. The homeowner told detectives he opened fire at the pair when they broke in.
Troyer said it appears the intruders were after marijuana and possibly cash. He said their bodies were found in the home's six-car garage when deputies arrived at the scene.
Detectives continue to investigate the shootings as well as the marijuana growing operation found in the home.
In the meantime, the 35-year-old homeowner is free while the prosecutor decides whether to file charges.
Troyer says the man's 9-year-old son who was inside at the time of the shootout is with his family.
Ironically, the deadly shootings came on the first day of marijuana legalization in Washington state. While it is now legal for adults 21 or over to possess up to an ounce of marijuana in Washington state, it is still illegal to grow or sell the drug.