The second jury trial of a Janesville man charged with homicide is underway this week in Rock County Court.

District Attorney David O’Leary is trying to convict 24-year-old Julian Collazo of first-degree intentional homicide in the 2017 stabbing death of 43-year-old Christine Scaccia-Lubeck.

Collazo’s attorney Jeff Jensen contend that Collazo’s jealous girlfriend Nicole Kazar actually committed the murder. She is expected to testify in court Tuesday.

Monday’s testimony featured the victim’s mother describing the moment she discovered her daughter’s dead body.

Multiple Janesville police officers and detectives also testified with evidence collected from the crime scene, including Collazo’s shoes that match a shoe print left in the victim’s blood.

Collazo had his first trial in the case back in the fall of 2019, but Rock County Judge Barbara McCrory declared a mistrial at that time due to a toxic jury.