Senior Hamas leader killed in airstrike and children killed in knife attack in Southport, England

Senior Hamas leader Ismail Haniyeh killed in Israeli airstrike in Tehran. Three children killed at a dance workshop in Southport, England, celebrating Taylor Swift's music. Eight other children injured, five critically. Knife attack not terror-related. Protest outside mosque. 17-year-old boy arrested. Fundraiser for victims raises over $128,500.