Police seek motive in deadly California shooting

(CNN) - Police are investigating whether family issues could have prompted a California man to gun down six of his family members - killing two adults and three children - before committing suicide. His wife remains in critical condition.

Authorities on Tuesday identified the gunman as 42-year-old Devan Kalathat in Sunday's nights shooting at Kalathat's Santa Clara townhouse.

Kalathat killed his 11-year-old son, Akhil Dev; his 4-year-old daughter, Negha Dev; his 35-year-old brother-in-law Ashok Appu Poothemkandi; Poothemkandi's 25-year-old wife, Suchitra Sivaraman; and Poothemkandi's 11-month-old daughter, Ahana.

Kalathat's wife, who was not identified, sustained multiple gunshot wounds and remains in critical condition, said Lt. Phil Cook.