Jeffrey Cooper

Boston Police tweet they are looking for Jeffrey Cooper, 17, last seen around 4:30 p.m. wearing a blue hoodie, blue jeans, a green Celtics hat, a blue coat, brown sneakers and glasses.

Steve tweets he was last seen getting on the Blue Line at Maverick.

Boston Police this morning are looking for Jeffrey Cooper, an autistic teen with a love of trains and the Boston Garden. Police are attempting to use a LoJack-like system that led to his safe return after he disappeared last September.

LoJack reports MBTA Transit Police used the human version of its tracking system to find an East Boston teen with a predilection for wandering away from home and school to ride the rails underneath Boston.

The company says yesterday's safe return marks the first successful use of its SafetyNet Service since it was introduced in Boston in January:

Approximately 20 minutes after arriving at North Station [where he left his father], officers with the MBTA Transit Police began picking up a signal emitting from the missing boy's SafetyNet Bracelet. The signal was coming from Downtown Crossing and was strongest underground. Officers went underground into the subway, boarded a train and were able to locate the boy, who was heading southbound.

The teen is well known to local police, who had always managed to find him safe, although sometimes after extensive searches that included requesting help from the public.

UPDATE: Found, Monday afternoon.

Boston Police report they are once again looking for Jeffrey Cooper, 15, last seen Friday.

According to police, Cooper, who frequently goes missing and has difficulty communicating, never returned home from school in Roxbury. He was last seen wearing a red jacket, a maroon hooded sweatshirt with "Madison Park" affixed to it, khaki pants and black sneakers. He likes trains and in the past has been found on the Red Line in Braintree and Quincy. He might also be in the South End or the areas around Boston Garden or Boston University.

Boston Police are looking for Jeffrey Cooper, 15, of East Boston, last spotted around 7 a.m. outside Madison Park High School in Roxbury. He was wearing a black and green Celtics jacket.

Cooper, who has wandered away before, has trouble communicating. He likes trains and the Boston Garden.

If you see him, contact the anonymous tip line at 1-800-494-TIPS or by texting TIP to CRIME (27463).

Boston Police report they are looking for Jeffrey Cooper, 15, last seen at his East Boston home around 9 p.m. on Friday, wearing blue jeans, black New Balance sneakers and glasses, and with a black and gray backpack.

Cooper, who is autistic and has trouble communicating, "enjoys riding trains and may try to visit the South End, the Boston Garden or the Boston University areas," police say. This is the third time he's gone missing in recent months, so police know he might also be found riding the Red Line.

If you see him, contact A-7 detectives at 617-343-4234 or the anonymous tip line at 1-800-494-TIPS or by texting TIP to CRIME (27463).

Boston Police are asking the public to be on the lookout for Jeffrey Cooper, 15, last seen at his East Boston home around 7:30 p.m. yesterday. The 15-year-old is autistic and may have trouble communicating his needs. He like trains and might be in the South End or near Boston Garden. He's been spotted on the Red Line in Quincy, and has disappeared before.

If you see him, contact A-7 detectives at 617-343-4234 or the anonymous tip line at 1-800-494-TIPS or by texting TIP to CRIME (27463).

UPDATE: Channel 4 reports he was found and is OK.

Boston Police report they are looking for Jeffrey Cooper, a 14-year-old autistic boy who apparently wandered away from his after-school program in Central Square in East Boston yesterday.

Police said Cooper has trouble communicating his needs. Police said he likes riding trains - he's been found riding the Red Line in Braintree and Quincy - but that he might be in the South End or near the Boston Garden.

He was last seen wearing glasses, a navy-blue sweatshirt with a Warren/Prescott patch, a black winter coat, black sneakers and a green and white Celtics hat.

If you see him, contact detectives at 617-343-4234.