California's attorney general petitions for Conrad Murray's license to be restricted
Deal with Sony Music reportedly covers 10 album releases
Practitioner could face four years in jail if convicted
Murray could now face up to four years in jail
Doctor looks set to face involuntary manslaughter charge
'Earth Song' clip to be broadcast at ceremony
Document was corrected to list death as homicide
LAPD investigation complete, reports website
Kravitz says track online is previously unreleased new material
Promo for singer's classic 1983 song to be preserved