Here is a guide for the first family bossflight:Defeat jeff the knife in mafia wars.

Family boss fight : jeff the knife

Health : 1,000,000

Limited time : 7 days

Recommended roles:

Use the following consumable weapons to inflict great damage:

	Crowbar Swings drop from robbing. They deal 70 damage.
	Backstabs drop from jobs. They deal 80-110 damage.
	Sucker Punches drop from fighting. They deal 90-100 damage.
	Rifle Rounds can be sent/received. They deal 100-130 damage.

— remember that these items can be picked up from jobs, fights or asked from friends (asked, yes).

Special Combos

Special Combos do greater damage to the boss compared to normal ones making battles easy.  To activate, you need to use ammos in the correct order as indicated below:

Green Combo

adds +90 to +110 damage : Backstab, Backstab, Crowbar Swing, Crowbar Swing

Yellow Combo/s

adds +100 to +140 damage : Rifle Round, Sucker Punch, Crowbar Swing, Rifle Round

adds +130 to +180 damage : Backstab, Backstab, Rifle Round, Backstab

adds +150 to +200 damage : Rifle Round, Rifle Round, Sucker Punch, Rifle Round