In 2017, Sandra Melgar was found guilty of the murder of her husband James Melgar. Did she do it or did the police get tunnel vision?

Sources: https://abcnews.go.com/US/amateur-sleuths-case-woman-prison-stabbing-bludgeoning-husband/story?id=59477363

https://www.khou.com/article/news/crime/sandra-melgar-new-dna-evidence/285-30850e86-6336-4ae9-92e7-3e23aaf14711