Grab 5 bams and their indexes from 1000G to represent our alignments.
mkdir data && cd data
wget ftp://ftp.1000genomes.ebi.ac.uk/vol1/ftp/phase1/data/HG00096/alignment/HG00096.chrom20.ILLUMINA.bwa.GBR.low_coverage.20101123.bam
wget ftp://ftp.1000genomes.ebi.ac.uk/vol1/ftp/phase1/data/HG00096/alignment/HG00096.chrom20.ILLUMINA.bwa.GBR.low_coverage.20101123.bam.bai
wget ftp://ftp.1000genomes.ebi.ac.uk/vol1/ftp/phase1/data/HG00097/alignment/HG00097.chrom20.SOLID.bfast.GBR.low_coverage.20101123.bam
wget ftp://ftp.1000genomes.ebi.ac.uk/vol1/ftp/phase1/data/HG00097/alignment/HG00097.chrom20.SOLID.bfast.GBR.low_coverage.20101123.bam.bai