LAS VEGAS (KSNV) — For 21 years, the loved ones of Theresa Insana have been asking who killed the 26-year-old.
Insana grew up in Niagara Falls, New York. She was a beloved daughter, sister and friend.
“She was always the best big sister,” said Maribeth Insana, Theresa’s younger sister. “She was always looking out for me. She was always looking out for her friends and family.”…