Scratch

Could you guys please help me? im making a first person shooter game and when i kill the people their dead bodies start moving. then they get back up and go back to the start. when they get to you when thehy die they just get back up and you die. i know what the problem is its just i dont know how to fix it. could someone help me? the problem is a similar script (the "spawn" script) is running after you kill him. heres the first script for the person:
<when green flag clicked>
<switch to costume[1]>
<hide>
<go to x   Random )y   100 )
<wait( 1 )secsc>
<show>
<glide( Random )secs to x   Random )y    25 )
<glide( Random )secs to x   Random )y   -25  )
<glide( Random )secs to x   Random )y    -75 )
<forever>
<switch to costume[ 2 ]>
<wait( 2 )secsc>
<switch to costume[ 3 ]>
<play drum( 49 )for( 0.5 )secss>
<play drum( 49 )for( 0.5 )secss>
<play drum( 49 )for( 0.5 )secss>
<change{ Health }by( 10 )
<end>

if you could help me that would be AWSOME. thanks!
-- Lab101010