The suspect in an Alabama Amber Alert has been formally charged in last week’s murder of an Auburn woman and her teen daughter, and the kidnapping of his own son.

Aaron Dontay Williams, 41, is charged with first-degree kidnapping in the July 10 abduction of his 3-year-old son, and with four counts of capital murder in the slayings of Tyeisha Williams, 34, and Zynniya Wright, 13.

On the capital cases, he is charged with capital murder during a kidnapping, capital murder of two or more people, capital murder of a child under the age of 14.

Williams, captured last week in Tennessee, waived extradition and was returned to Alabama on Wednesday, police officials announced Thursday. He is being held without bond.

An Amber Alert was issued Thursday for the 3-year-old boy reported missing after his mother and sister were found slain inside their Auburn home.

Auburn police responded at 2:30 p.m. to the family’s home in the 1200 block of Samantha Court on a welfare check.

When they arrived, they entered the home and found the two victims.

Williams, the husband of the slain woman and father of the young boy, was not at the residence when officers arrived. Williams was not Zynniya’s father.

The Alabama Law Enforcement Agency on Friday morning canceled the Amber Alert after Williams was taken into custody that morning by U.S. Marshals, the FBI and the Tennessee Bureau of Investigation.

The child was found unharmed.