Jimmy needs you to whack his bodyguard who's heavily protected in the hospital. Grab a vehicle and make your way to the hospital now. It's just a few blocks away, so it won't be too hard to find.
Once you arrive, park a car outside the hospital and leave the door open on it when you get out (by running in a direction right after getting out). This will serve as a getaway vehicle and will be very useful later on. Head into the mission marker next to the entrance doors. You'll be told not to enter the building with a weapon drawn, so switch to your fists and head on in. Anthony is in the ER Department, which is to the right, so make your way towards him.
Head to the right and go into the locker room and get dressed up like JD with the scrubs. Once they're on, make your way to see Anthony.
The cops will leave you alone for a minute, so pull the plug on Anthony's life support machine and make your way outside quickly and discreetly. As soon as you walk out the room the cops will pull their guns on you, so I suggest you switch to a weapon just after you've killed Anthony, then kill all of the cops as you make your way to the entrance doors. There'll be about 15 cops altogether, so take out any who run at you, then advance forward. Once you get outside, get in the car you should have parked for the getaway, and make your way to the Pay N' Spray, or outrun the cops.
- Switch to a weapon right after killing Anthony.
- Kill all of the cops, but keep moving forwards quickly.
- There's a health pack on the wall just inside the entrance doors.
- Park a vehicle outside and leave the door open to make your escape easier.
- Use the Pay N' Spray to lose the cops.