Crazy story about killing a giant Bass...

Had this customer come in about a month ago and tell me this crazy story of how he had to kill a CRAZED BASS.  I just suddenly remembered it!  

For the last three years, he'd been visiting his buddy every 4th of July for a family swim time on a local lake.  Every year, the kids would come screaming out of the lake complaining of an attack by a Crazed Lake Monster.  They eventually came to realize that it was an 11+lb female LM that was living/bedding under the end of his dock.    For three years the kids were getting bit from this she-beast as she thought she was defending her nest.  The kids apparently had multiple scuff marks that were like a "road rash" from skateboarding injuries.

Apparently, this year the dad had enough.  Once agiain, the kids were attacked and ran out of the water.  So, dad decided to go in after the Bass.  He said that he walked out like 15 ft from the shoreline and had a standoff with the beast.  She just sat there refusing to move close to the surface.  He yelled to his buddy for a net.  He simply just scooped her up and walked out of the lake.  The neighbor had a scale and it measured over 11lbs!  

Now for the hard part...he said that they sincerly felt it was a danger to both families as the children had all sustained injuries, so...he killed her :(

He said the fish was really nasty.  6 ft of mono sticking out of her ass, two different hooks broken off in her lip and head, many assorted injuries from snagging and fighting.   Sounds like a real beast.

What would you guys have done in this situation???  I'm not sure myself