This fascinating hybrid's primary prey is of course Homo sapiens, which makes it somewhat difficult to keep him fed. Damsels in distress are a particular favorite. He is quite venomous, with dripping eight inch long fangs that also have the unique ability to open locked doors and puncture car tires.
The constricting abilities inherited from the python side of his ancestry do help him capture prey, as they permit him to more easily catch and ingest pedestrians from the sidewalk as he hangs from a convenient tree limb. When he has completely depleted the pedestrian population in a neighborhood, the constricting abilities come in handy to stop a passing car and extract its occupants.
/Hollywood movie mode off
Actually he's about 3'. His parents are a Burmese king cobra and a Chinese king cobra. But the truth is much less entertaining than some of the fun speculations in bad Hollywood movies about hybridized venomous snakes. 
Technically I'm not sure this guy really counts as a cross or a hybrid. Burma and China share a border and their king cobras probably share genetics, since nobody is in the habit of asking them for a passport.
I know O. hannah is about to become non monotypic, but I'm not yet sure how the species divisions are going to shake themselves out. Any input, Dr. Wuster?