Fourth person arrested for injury to a child in Spring girl's death

SPRING, Texas (AP/FOX 26) - Deputies say a fourth person has been arrested for injury to a child in the death of a 14-year-old Spring girl who died in October 2016.

Montgomery County deputies arrested Keyonna Gunner in Houston on Tuesday  for felony injury to a child. On Saturday, the Montgomery County Sheriff's Office said three people were arrested for injury to a child. The three suspects arrested are identified as Tommieretta Gunner and Marreissa Jones and the child's father Anthony Jackson.  Gunner and Jones were charged with first-degree felony injury to a child charge, while Jackson was charged with third degree felony injury to a child.

Authorities say the girl with special needs died last year after being given blood pressure medication not prescribed by a doctor, and that an investigation found numerous people had used a stun gun on her over several months. The investigation continues.

Authorities were called to a Spring home in October 2016 when the teen became unresponsive after being given the medication. She was pronounced dead at a hospital.

An autopsy found the medication caused her death, which was ruled a homicide.

Detectives found that video surveillance in the home captured the stun gun use and administering of the medication.