Nassau County police charged Bobby Vanderhall, 34, with three counts of murder in the deaths early Saturday of his mother, Lynn Reichenbach-Vanderhall; his sister Melissa Vanderhall; and Janel Simpson, who family members said.
A friend of Melissa was able to escape and call for help.
"She's in the hospital right now", a relative of Murray said.
"He went to the garage".
A fourth lady survived the strike and is hospitalized. He obtained a large hammer, Detective Lt. Stephen Fitzpatrick, head of the Nassau County Police Homicide Squad.
The women suffered blunt force trauma, but cops would not elaborate, said Det.
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Bobby Vanderhall stayed in the house for a short time before fleeing, and was apprehended within a two-mile radius of the scene sleeping in a vehicle, said Nassau County Det.
According to police, Lynn Vanderhall had an order of protection against her mentally troubled son.
Sunday morning he will be arraigned on three counts of murder and one count of attempted murder.
Bobby Vanderhall, who police described as more than 6 feet tall and at least 230 pounds, was arrested within 2 miles of the house, police said. "She was the best", cousin Juanita Johnson said. He was arrested after the police found him asleep in a vehicle, two miles from the house.
He described his daughter and her friends as fun-loving women. "These girls don't give problems, these girls just have fun", Simpson said.
Bobby Vanderhall had already racked up a history of arrests for sex abuse and DWI, receiving his latest charges in the murders on Saturday. He is scheduled for arraignment on Sunday and is now being kept in Mineola in Nassau County.