Family tragedy: A 9-year-old girl’s birthday ended in a bloodbath Monday after her ex-con father murdered his girlfriend and her two daughters inside their Brooklyn apartment. Joseph McCrimon, 46, opened fire in the Van Dyke Houses at around 11:20 p.m., fatally shooting his girlfriend Rasheeda Barzey, 45, and her daughters, Solei Spears, 20, and Chloe Spears, 16. The deranged dad was later found dead two blocks away from a self-inflicted gunshot wound. McCrimon’s 9-year-old daughter dialed 911 after her father left the apartment. “Daddy was coming over for my birthday and he shot them,” she wept in her brave call to the 911 dispatcher. Friends and family mourned the hardworking mother and her daughters, the eldest a junior at Baruch College, the other a high schooler.