The mother of Robin Westman, the 23-year-old gunman who killed two children and injured 17 others before taking his own life, is refusing to cooperate with police and has retained a criminal defense attorney, Minneapolis Police Chief Brian O’Hara said.

Mary Grace Westman, who previously worked at Annunciation Catholic School, has not contacted investigators and has declined to respond to their outreach, the department announced Thursday evening. “We have not been successful in talking to the shooter’s mother,” Minneapolis Police Chief Brian O’Hara told reporters on Thursday.

O’Hara gave no further details but said four search warrants executed over the past 36 hours produced hundreds of pieces of evidence and several electronic devices. Continues…