They broke into our cars...

We were robbed. wallets, keys, laptops, backpacks, all gone. Police report has already been filed and the credit cards have all been cancelled, we even know what store they tried to use the cards. The only thing we need is to hound the LAPD to start an investigation because the Target they used the cards at have a profile with videos and pictures of the thieves. Do you guys know anyone that could help?