Sonia Mejia and Damiana Castillo died 1 mile and two years apart, and police have long believed the same man murdered them.
DNA taken from crime scenes — Mejia died in Taylorsville on Feb. 9, 2006; Castillo in West Valley City on Feb. 9, 2008 — matched, but that DNA didn’t belong to anyone whose genetics were already in law enforcement databases.
“We know who it is,” Salt Lake County District Attorney Sim Gill said Thursday in a phone interview with The Salt Lake Tribune.
Gill did not disclose the suspect’s name, but added, “This person is in another jurisdiction and we want to be able to effectuate an arrest.