Google Maps api v2 android: How to Remove a single marker?

In my app i need to have 2 types of markers: the first ones need to stay on a location and the second ones need to move, right now I dont have the static markers yet but my app can show a marker moving if the location of the phone changes but for that i call mMap.clear(), I dont want to clear all markers when the location changes so I need to remove only that marker, I read in another question that I need to use Marker.remove(); to remove individual markers but im not sure where to implement that in the code.

Here is the method for a new location:

public void onLocationChanged(Location location) {
    mMap.clear();
    GetLatLong();
    handleNewLocation(location);
    mCurrentLocation = location;


}

and here is the handleNewLocation method:

    private void handleNewLocation(Location location) {
    if (mLastLocation != null) {

        LatLng latLng = new LatLng(list.get(0), list.get(1));
        //mMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));


        //añadir un nuevo marker con la posición de la variable latLng
        MarkerOptions camion = new MarkerOptions()
                .position(latLng)
                .title("Camión")
                .snippet("ruta " + ruta)
                .icon(BitmapDescriptorFactory.fromResource(R.drawable.bus));


        Marker marker = mMap.addMarker(camion);
        if (marker == null) {
            mMap.addMarker(camion);
        } else {
            camion.position(latLng);

        }

    }
}

Thank you.