Hundreds of boxes of missing Houston (Texas) Police Department evidence contained files from 28 capital murder cases.
Houston Police Chief Harold Hurtt says seven of those cases involved defendants who now await execution.
Hurtt told the Houston Chronicle editorial board last week that cataloging the misplaced evidence in thousands of cases is about 74 percent complete.
The previously lost evidence from 280 mislabeled boxes found in the H.P.D property room in August includes that of convicted killers from the 1980s.
The Harris County District Attorney's office says the attorneys for all seven death-row inmates have been notified about the misplaced evidence.