Funerals announced for 4 kids stabbed to death, accused mother to undergo psych evaluation

Funeral arrangements have been announced for a father and his four children, who were brutally stabbed to death in their Georgia home.

Mother Isabel Martinez has been charged with killing her husband and four of their children, ranging in age from 2 to 10.

Read: Mom Tells 911 Operator Satan Was Coming For Her When She Stabbed Her 8-Year-Old Son 55 Times

A fifth child, 9-year-old Diana Romero, remains hospitalized with serious stab wounds.

She was recently removed from a ventilator and is now able to speak, police and relatives said.

A wake is scheduled for Wednesday night in Lawrenceville. A funeral Mass will be held Thursday at St. Lawrence Catholic Church for Martin Romero, 33, Isabela, 10, Dacota, 7, Dillan, 4, and Axel, 2.

Martinez behaved oddly in her first court appearance last week, flashing the thumbs-up sign to photographers, grinning broadly and, at one point, getting down on her knees.

She declined representation by an attorney, but the court appointed her one anyway. Lawyer Robert Greenwald said, "Obviously the charges are quite serious, so it's not in her best interest to represent herself," the Gwinnett Daily Post reported.

Read: Teen Attacks Mom, Takes a Shower, Watches TV, Then Calls 911: 'I Killed My Mother With a Knife"

He petitioned the court for a psychiatric evaluation of his client, who was described by relatives as being profoundly depressed over the recent death of her father.

The 33-year-old mother is being held without bail. She is charged with five counts of murder and six counts of aggravated assault.

Her preliminary hearing is scheduled for July 20.

Watch: Mom Accused of Murdering Family Gives Bizarre Court Appearance, Smiles At Cameras