The author is Dean Koontz. It was published in 1993, so well over ten years ago.
The protagonists are police officers. The book features a supernatural criminal with quite a variety of powers.
He can form a golem from earth:
In Jewish folklore there was a creature called a golem. Made of mud in
the shape of a man, endowed with a form of life, it was most often an
instrument of vengeance. Bryan could create an infinite variety of
golems and through them stalk his prey, thin the herd, police the
world. But he could not enter the bodies of real people and control
their minds, which he would very much have enjoyed. Perhaps that power
would be his, as well, when at last he had Become.
He can stop time:
Harry checked his own watch, which had a digital readout. It also
showed 1:29, and the tiny blinking dot that took the place of a second
hand was burning steadily, no longer counting off each sixtieth of a
"Time has . . ." Connie was unable to finish the sentence. She
surveyed the silent street in amazement, swallowed hard, and finally
found her voice: "Time has stopped . . . just stopped. Is that it?"
"Stopped for the rest of the world but not for us?"
He has the power of pyrokinesis:
He had used the power of pyrokinesis to set the bodies afire, searing
them with flames so intense that even bones were vaporized. He always
disposed of those on whom he practiced because he didn't want ordinary
people to know that he walked among them, at least not until his power
had been perfected and his vulnerability was nil.
In the end, the protagonist manages to shoot him:
Ticktock was lying on his stomach, directly in front of the stairs,
facing out toward the kitchen, and Harry leaped off the last step,
landed hard on red silk stretched taut across the kid's back, jammed
the muzzle hard against the base of the kid's skull, saw the gun-metal
suddenly glow green and felt the start of what might have been a swift
and terrible heat in his hand, but pulled the trigger.