LITTLE ROCK, Ark. (KTHV) – The Little Rock Police Department has arrested 21-year-old William Alexander in connection with the murders of a mother and her two children.

Alexander is facing three counts of capital murder for the deaths of 24-year-old Mariah Cunningham, three-year-old Elijah Fisher and five-year-old Alayah Fisher.

He was booked into the Pulaski County Jail on Monday at 6:15 p.m.

The three were found dead inside their home at the Rosewood Apartments on December 4, 2017. The bodies were found at 2 p.m. by a relative who was concerned because the children had not been seen at school. Officers spent the next couple hours talking to neighbors and family members to figure out what happened.

On December 13, 2017, the City of Little Rock announced a $50,000 reward for information leading to the arrest and conviction of the person responsible for the murders.