Father is arrested for killing his son, three, and daughter, five, amid bitter divorce as distraught wife posts tribute 'Heaven has gained two beautiful angels'
Adam Price, 35, was arrested in California on Sunday, hours after his two children, Emily, 5, and Theodore, 3, were found dead at his home in Nebraska
Brother and sister had been staying with their father for a court-ordered visitation amid his parents' divorce proceedings
Children's mother, Mary Nielsen, said she last heard from them on Thursday and later could not reach them
Police in Nebraska went twice to Price’s home at Nielsen's request to check on the children, but left without entering when no one answered the door