There's a good look at how cellphone triangulation works in the Daily News today, in relation to how police were able to determine that the Imette St. Guillen murder's "prime suspect" Darryl Littlejohn was in the vicinity of where her body was eventually found. We'd been curious about how the technology works (sure, we'd seen it "used" in TV shows or mentioned and got the basic idea), but we didn't realize locations can be determined even without phone calls being made. And that seems to be the difference with Littlejohn's cellphone information - the NYPD hasn't outright said he made calls in that area because they may have pulled his whereabouts by overalls pings to cell towers. We wonder if the police used that technology in the murder of Catherine Woods, the Upper East dancer-stripper, in which her boyfriend was arrested (he had made multiple cellphone calls to her before her death and, then, suddenly nothing).

In other St. Guillen case news, the NY Times says the police have been unsuccessful as yet with tying Littlejohn to the other rapes in Queens and Brooklyn. And Brooklyn Assemblyman Felix Ortiz proposed "Imette's Law", which would require any establishment with a liquor license to install cameras at all entrances. Bar owners are upset, because that's an additional cost in the thousands, but the politicians feel that the fact many violent disputes occur at bars outweighs that complaint. It'll be interesting to see how bar security changes in the next year - some bars actually scan licenses after incidents.