A Florida man accused of fatally shooting a mother in front of her children and later wounding his former boss, was arrested by a SWAT team after a seven-hour standoff with police in an Orlando suburb, authorities said.Manuel Feliciano, 50, was taken into custody by sheriff deputies just after midnight on Saturday at his home, where he had barricaded himself inside and fired gunshots, the Orange County Sheriff's Office said. He was charged with homicide, attempted homicide and attempted homicide of deputies.According to the sheriff's office, at 5:29 p.m. Friday, a 7-year-old child called the 911 emergency line about a shooting at a home. Deputies found a dead 45-year-old woman by the home's driveway when they arrived. Her two children, including the 7-year-old, were alive.The woman's identity was not released. But she and Feliciano had been in a relationship, said Captain Angelo Nieves in an interview.