SAN JOSE, Calif. (KRON) -- Monday marked the fifth day of testimony for the retrial of Sierra LaMar's accused killer, Antolin Garcia-Torres. Prosecutors are trying to prove to jurors that Garcia-Torres kidnapped and murdered the 15-year-old Ann Sobrato High School student on her way to school 14 y ears ago. Her body has never been found. On March 16, 2012, the cheerleader vanished while she was walking from her mother’s house to her school bus stop. The jury listened to a transcript on Monday of testimony from Santa Clara County Sheriff's Deputy Douglas Kubik, a digital evidence forensic examiner who testified in 2017. Because Kubik died between Garcia-Torres' first murder trial in 2017 and his 2026 retrial, prosecutors had to rely on reading a transcript of Kubik's testimony. The last digital trace LaMar left behind was a selfie photograph she snapped using her Apple MacBook Pro's Photobooth feature at 7:12 a.m. on March 16, 2012. This is the last photograph ever taken of Sierra LaMar. (Image via Santa Clara County Superior Court) In the photo, she is smiling and striking a silly pose with her tongue out. LaMar's hair is curled, and she's wearing a San Jose Sharks hockey team sweatshirt. Kubik previously testified that he examined LaMar's computer using the girl's passwords. Between October of 2011 and the day she vanished, LaMar used her computer to take 677 selfies. The teenager, who had an active social media life, followed her normal before-school morning routine, Kubik's transcript stated. According to Kubik's analysis, LaMar turned on her computer at 6:23 a.m. and opened her Twitter account. At 6:31 a.m., she checked her Tumblr page, and at 7:12 a.m. she took a photo of herself. "Sierra had a pretty regular schedule ... consistent with the rest of her school day mornings. Most mornings, she was checking social media. There wasn't anything out of the ordinary," Kubik's transcript states. Sierra LaMar LaMar’s last communication was a text message she sent to her friend, promising to bring makeup for the friend when she arrived at school.  LaMar usually left her house at 7:13 a.m., walked a half-mile through her rural neighborhood past open fields, and caught the school bus at her bus stop at 7:24 a.m. The bus driver looked for LaMar that morning, did not see the girl, and continued driving. No one saw the alleged kidnapping. Kubik's analysis did not find any evidence that LaMar was not planning to go to school. Investigators later found the San Jose Sharks sweatshirt with dirt stains on the back, hidden in a cactus plant. Prosecutors said the dirt stains show someone dragged her body along the ground before they hid the clothing that she was wearing that morning. Deputy District Attorney O’Bryan Kenney said LaMar's disappearance was a stranger kidnapping. Kenney said in his opening statements last week, "The defendant stole her away. He grabbed her, dragged her, he put her in the back of his car, he closed the door, and he drove away." The prosecutor said Garcia-Torres picked a victim who was small, young, and vulnerable.  Antolin Garcia-Torres stands in a San Jose courtroom on Nov. 2, 2026. (Pool photo) Kenney admitted to the jury, "We can't prove exactly where she died, (and) how she died." All digital activity on LaMar's cellphone and computer went dark after the 7:12 a.m. selfie, and she never made it to school. Her mother sent text messages to the teen's cellphone throughout the morning, but the messages were left unanswered. 911 call reporting Sierra LaMar missing played in courtroom Also on Monday, a search team volunteer -- who found LaMar's bag of belongings and clothing hidden in the cactus plant next to a shed -- testified that kittens first caught his attention. The volunteer said kittens were trying to go inside the shed, and that's when he spotted the bag. Kenney said the bag contained everything a teenager like LaMar would never leave behind willingly, such as her makeup, house key, clothes, and lunch money. The teen's cellphone was found discarded on rain-soaked ground in a separate location. The retrial is being held this November because Garcia-Torres’ previous murder conviction was overturned by a higher appeals court. Now 35, the inmate has been in custody since his arrest in May of 2012. ...read more read less