This is a Weird Darkness Bonus Bite.

A man who killed four people, including three homeless men, and attacked several others

throughout San Diego during a spree of attacks that began nearly five years ago, was sentenced

last month to four life without parole state prison terms, plus 143 years to life.

John David Guerrero, 43, pleaded guilty nearly a year ago in connection with attacks on more

than a dozen victims between February and July of 2016, some of whom were set on fire,

bludgeoned, or impealed with railroad spikes.

Most of the attacks occurred in the summer months, with some of the victims set on fire,

while others were bludgeoned or impealed with railroad spikes.

A definitive motive was never disclosed, though preliminary hearing testimony indicated

Guerrero told his first victim that he attacked him because you're a bum.

Deputy District Attorney Mackenzie Harvieu said Guerrero targeted members of our most

vulnerable community, and described the attacks as brutal, gruesome, and horrific.

Guerrero's attorney, Danish Tandon, told the court his client was being held accountable

for his crimes, but noted, Mr. Guerrero is severely mentally ill.

I don't think anybody doubts that.

Tandon said Guerrero's parents tried in vain for many years to obtain mental health

treatment for their son, and said such treatment has proven beneficial during Guerrero's

previous state hospital stays since his 2016 arrest.

Linda Grahamlich, the mother of Sean Longley, 41, who was stabbed with a railroad spike

in Ocean Beach, told Guerrero, you took away a piece of my heart that I'll never, ever

get back, and I will never, ever forgive you for that.

...