How do you kill the person on the motorbike on dead rising

Isabella on the motor bike is quite hard to kill but easy if you follow these steps
1:you'll need at least 2 handguns and a sledge hammer.
2:you'll also need at least about 3 Orange Juices(get them from Columbian roastmasters in paradise plaza).
3:when the chase has started with Isabella on the bike in the north plaza head down to Crislips hardware store were the fountain is STRAIGHT AWAY!
4:get on the barracaded fountian on the middle were the zombies cannot reach you and pull out your gun
5:here Isabella cannot reach you and after every five seconds she will pull out a gun and shoot 2 bullets at you but in that time she will have stopped her bike to shoot. Keep shooting her to deplete her health and after every every loss of 4 bars drink an OJ
6:once you have depleted your guns out of ammunition go down to her pull out your sledgehammer and kept dodging and hitting .
So do these steps she'll be down in no Tim ok:)