elissa harrington abc news. >>> warning people about possible rabeies exposure. a dead bat has tested positive for the disease after testing positive on black hawk road. rabies is passed by touching an infected animal or by being bitten by one. it can be deadly. control officials will be handing out flyers detailing the symptoms that people need to watch out for. >>> bart police are using an unusual-looking mobile device keeping eye on krimcriminals at bart stations. it is not pretty but it is getting more attention. amy? >> hi, cheryl. it's eye-catching for sure. we've noticed a lot of bart passengers looking up at it but what they're hoping is that the criminals will notice it. it definitely stands out. >> it's a little star warsy. >> it's 25-feet tall making those on the ground feel pretty small. >> pretty imposing. >> reporter: and it's a bit mysterious with the dark windows. >> it's intimidating. bart police say that's the point, to intimidate criminals and hopefully scare them away. >> i think that's a great idea. i think, you know, we need the protection.

elissa harrington, abc 7 news. >>> san jose police officers are receiving condolences today from fellow officers around the country. here's san francisco police chief greg sur. >> it just doesn't get any worse than this. going to do your job, going to help and not making it home. you know i mean it's just -- it's just -- it never gets any easier and it happens all too often. >> the chief said he reached out to san jose's chief last night and offered to send some of his officers if san jose's department needs any help while the funeral service is under way. >>> the attorney general is offering her condolences to officer johnson's family. she issued this statement saying yesterday's tragedy is a grave reminder of the risks that our law enforcement officers take each day when they put on the badge to protect their communities. a statement from governor jerry brown, officer johnson will be remembered for his courage and dedicated service. we join the entire san jose community in mourning this tragic loss. >> do stay with abc 7 news for continuing coverage of the story. we will continue to b