The Lapeer County sheriff compares them to Bonnie and Clyde. But unlike the legendary crime duo, who never got married, these modern bank robbery suspects have an offer from Ron Kalanquin to help them tie the knot.

"I'll volunteer to marry them in the jail if they surrender," the sheriff said Monday. Kalanquin said he wanted the Lapeer couple off the streets before their cash ran out and they attempted another robbery.

The suspects — Harold "Aaron" Holt, 24, and Elizabeth A. Bruman, 23 — are suspected of taking about $5,000 in the Sept. 19 robbery of a Lapeer County Bank & Trust branch in Deerfield Township, about 60 miles north of Detroit.

Detectives determined that the robbery money was used to buy wedding rings, pay back rent and pay the woman's attorney for work done in a child custody case, The Flint Journal reported.

The couple met after the man was released from the county jail and was introduced to her by another ex-inmate, Kalanquin said.

"We believe they could still be in the area, but could also be somewhere in Michigan or beyond," Kalanquin said. He appealed to the couple's relatives and friends to alert police to their whereabouts.

According to an official FBI account, Bonnie Parker was 19 and married to a convicted murderer when she met the unmarried, 21-year-old Clyde Barrow in Texas in 1930. Barrow escaped from jail in 1932 using a gun smuggled to him by what the FBI called his "paramour," and they embarked on a murder and robbery spree that ended when they were shot to death in a 1934 ambush in Louisiana.