This news is just popping up now, but Johannes Mehserle, the officer invovled in the BART shooting and killing of an unarmed man (previously discussed here and here) has been arrested in Nevada on Murder charges. The Mercury News has more info, but not much though I’m sure more will surface soon. Apparently this just happened this evening so more updates to follow.

UPDATE: TedR posts in the comments that SF Gate has a more detailed story up. They say:

Mehserle, 27, was taken into custody in Douglas County, Nevada, said Deputy Steve Velez of the Douglas County Sheriff’s Office. The arrest was also confirmed by David Chai, chief of staff to Oakland Mayor Ron Dellums.

Mehserle was arrested in connection with an investigation by the Oakland Police Department into the shooting of Oscar Grant, 22. An Alameda County judge signed an arrest warrant, and Mehserle surrendered without incident, authorities said.

Douglas County sheriff’s officials refused to disclose what crime Mehserle was accused of committing in the arrest warrant. Deputy Velez said Sheriff Ron P. Pierini would make a statement on Wednesday.

So according to them it’s not officially murder charges yet, just in connection to the shooting and the actual charges will be announced in a press conference tomorrow.