Remains of Colorado mom Rita Gutierrez-Garcia found more than 4 years after she went missing

The remains of a Colorado mother of three have been recovered more than four years after she went missing, the Boulder District Attorney's Office announced Thursday.

Rita Gutierrez-Garcia was 34 years old when she was last seen near downtown Longmont around 2:30 a.m. on March 18, 2018, at a bar celebrating Saint Patrick's Day, CBS Denver reported.

The investigation into her disappearance included dozens of interviews and search warrants, hundreds of tips and leads, and the use of forensic testing to identify DNA evidence, officials said.