christina rendon, ktvu channel 2news. >>> city officials teamed up today to spread a little love in west oakland. >> good job. >> members of the ilwu and others gathered today to trim trees, pick up garbage and trim trees. the event was sponsored to help tackle persistent problem of illegal dumping and graffiti there. she says cleanup days do more than help beautify neighborhoods. they also help build a sense of community. >> what's beautiful about these community gatherings, they give communities the opportunity to know each other and realize they are not alone in their desire to see a clean, healthy, safe oakland. >> today's cleanup was part of my oakland is beautiful campaign. another cleanup day is scheduled for next weekend. >>> tonight, cal trans will close a stretch of highway 101 in the north bay, shutting down both directions of the highway from petaluma to roanoke park starting at 11:00 tonight with only one lane available starting at 8:00 p.m. detours will be set up. crews will demolish the overpass at the old redwood highway interchange, all part of a plan to improve traffic

ktvu's christina rendon has the story. >> reporter: a new york jewelry supplier is out nearly half aillion dollars, after precious jewels were stolen right from his hand in san carlos. the 43-year-old wants to remain anonymous, but tells me he was headed to jeffrey's diamonds and goldsmith. the director of operations at the store had no idea about the robbery until after it happened. >> we had just closed and so it didn't have much to do with our store. the person who got robbed was coming to our store, but was not here. >> reporter: the jeweler had just crossed walnut street, when a group of masked men shouted at him, one man got out and pointed a gun and stole his briefcase. >> if he had parked his car somewhere else and gone somewhere else, if he was followed, he might have been robbed then. >> reporter: the jeweler thinks he was followed to san carlos. he says his briefcase had diamonds and other high end jewels valuing upwards of $400,000. the san mateo county sheriff's office needs the public's help tracking down the four suspects, last seen in a silver honda, with paper licens

ktvu sea christina rendone is live in brentwood where parents are sure to have strong reactions when when he bring their kids to school. >> reporter: we've seen already parents bringing their kids to school. police found out about this earlier this week. it's all because one girl broke her silence at adams middle school. police say she told an april dult about what was happening. she claims a boy was using inappropriate photos of her to blackmail her into engaging in sexual acts on campus. that adult told police who started to confiscate cell phones and interview teenagers. they know of at least a dozen boys allegedly sexting. it wasn't just happening here but at brisco and excelsior. police say the teens are facing serious consequences. everyone involved is between the age of 12 and 14. >> we have been able to establish that there were acts, unlawful acts of sexual conduct that took place during that threat that was made. >> reporter: it's too soon to know who will be charged in this case. that's something that police are talking to the contra costa county's d.a. about. we're hoping

and christina rendone speak about the run in outside of a san carlos store. >> new york jewelry supplierarly half a million dollars after precious jew yells were stolen -- jew he wills were stolen from his hands. >> the operations at the store had no idea of the robbery until it happened. >> we had just closed. and so, it didn't have much to do with the store. the person who got robbed was coming to the store but not here yet. >> theyous crossed the street. and they addressed him from a silver suv, one man not out and stole his brief case before they drove off. >> happened to be where he parked his car. >> coming here. >> if he had gone somewhere else and if he was followed, he might have been robbed there. >> some think he was followed to san carlos. >> he had jewels upwards of $4,000. >> they need the public's help tracking down the four suspects. >> it is a honda pilot with license plates. >> we are working the days diligently right now. >> you know, we have a good track record. >> hopefully we will find them and take them off the street. >> the jew he willer is doing okay. and -- jew