Police said he was released from the hospital late Tuesday and taken to the Linn County jail. Alexander Jackson has been charged with three counts of first-degree murder, which carries a sentence of life in prison without parole.
It was not immediately known if Jackson had an attorney to speak on his behalf.
The home is located in a quiet, suburban neighborhood about a half-mile from Cedar Rapids Xavier High School on the northern side of the city. Property records show that the family has lived there for a decade.