Short answers, pulled from the story.
Marcus Licinius Crassus was born in 115 BC into the gens Licinia, an old and respected plebeian family in Rome. He was the second of three sons born to Publius Licinius Crassus, a consul in 97 BC and censor in 89 BC.
Marcus Licinius Crassus amassed an enormous fortune by buying property confiscated during the Marian-Cinnan proscriptions at auction prices far below value. Pliny estimated his wealth at approximately 200 million sesterces, while Plutarch recorded it growing from less than 300 talents to 7,100 talents.
Marcus Licinius Crassus created the first Roman fire brigade consisting of 500 men who rushed to burning buildings upon alarm. Upon arrival, his firefighters did nothing while Crassus offered to buy the burning building from the distressed owner at a miserable price before extinguishing the fire if the sale was accepted.
Marcus Licinius Crassus died in 53 BC at the Battle of Carrhae in modern Turkey where his legions faced defeat by numerically inferior Parthian forces. He died when junior officer Octavius grabbed the bridle of the horse he mounted to ride to negotiations with Parthian general Surena, instigating a fight that left all Romans dead including Crassus.
The coalition included Crassus, Pompey, and Caesar, who became consul in 59 BC. The alliance was restabilized at the Luca Conference in 56 BC, after which Crassus and Pompey again served jointly as consuls.