A woman whose husband and daughter were killed in the terrorist attacks in the Indian city of Mumbai says she is grateful U.S. authorities brought charges against a Chicago man accused of conducting extensive surveillance on potential targets.

Prosecutors on Monday charged 48-year-old David Coleman Headley in the November 2008 attacks that left 166 people dead.

Among the victims were a Virginia man, Alan Scherr, and his 13-year-old daughter, Naomi.

Scherr's widow, Kia, says her husband had gone to Mumbai to scout locations for a meditation retreat.

Kia Scherr said in a statement Monday that the FBI had informed her of the charges against Headley. She says she hopes he "cooperates fully and discloses all information" to aid in the investigation.