Lawyer: The family that the suspected shooter lived with is in shock

An attorney representing the family who had taken in Florida school shooting suspect Nikolas Cruz says they're shocked by what happened and had no idea he was planning anything.

Jim Lewis told The Associated Press on Thursday that Cruz began living with the family after his mother died in November. He said Cruz was quiet and very respectful but also sad.

Lewis says Cruz had an AR-15 rifle in the home with them but it was kept in a locked cabinet.

Lewis says the family -- who he declined to identify -- has been cooperating with law enforcement, who have been searching their home. He also said the family's own son, a junior at Marjory Stoneman Douglas High School, was at the school when the shooting happened and is shaken up by it.

Cruz has been charged with 17 counts of premeditated murder in the Wednesday afternoon shooting in Parkland, Florida.